diff --git a/catalyst_voices/lib/app/view/app_content.dart b/catalyst_voices/lib/app/view/app_content.dart
index fc8160e07f..be743c669a 100644
--- a/catalyst_voices/lib/app/view/app_content.dart
+++ b/catalyst_voices/lib/app/view/app_content.dart
@@ -1,4 +1,5 @@
 import 'package:catalyst_voices/app/view/app_precache_image_assets.dart';
+import 'package:catalyst_voices/app/view/app_session_listener.dart';
 import 'package:catalyst_voices_brands/catalyst_voices_brands.dart';
 import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
 import 'package:flutter/material.dart';
@@ -51,7 +52,9 @@ class AppContentState extends State<AppContent> {
       ),
       builder: (context, child) {
         return GlobalPrecacheImages(
-          child: child ?? const SizedBox.shrink(),
+          child: GlobalSessionListener(
+            child: child ?? const SizedBox.shrink(),
+          ),
         );
       },
     );
diff --git a/catalyst_voices/lib/app/view/app_session_listener.dart b/catalyst_voices/lib/app/view/app_session_listener.dart
new file mode 100644
index 0000000000..42bf1fae47
--- /dev/null
+++ b/catalyst_voices/lib/app/view/app_session_listener.dart
@@ -0,0 +1,67 @@
+import 'package:catalyst_voices/widgets/snackbar/voices_snackbar.dart';
+import 'package:catalyst_voices/widgets/snackbar/voices_snackbar_type.dart';
+import 'package:catalyst_voices_assets/catalyst_voices_assets.dart';
+import 'package:catalyst_voices_blocs/catalyst_voices_blocs.dart';
+import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+/// Listens globally to a session and can show different
+/// snackBars when a session changes.
+class GlobalSessionListener extends StatelessWidget {
+  final Widget child;
+
+  const GlobalSessionListener({
+    super.key,
+    required this.child,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocListener<SessionBloc, SessionState>(
+      listenWhen: _listenToSessionChangesWhen,
+      listener: _onSessionChanged,
+      child: child,
+    );
+  }
+
+  bool _listenToSessionChangesWhen(SessionState prev, SessionState next) {
+    // We deliberately check if previous was guest because we don't
+    // want to show the snackbar after the registration is completed.
+    final keychainUnlocked =
+        prev is GuestSessionState && next is ActiveUserSessionState;
+
+    final keychainLocked =
+        prev is ActiveUserSessionState && next is GuestSessionState;
+
+    return keychainUnlocked || keychainLocked;
+  }
+
+  void _onSessionChanged(BuildContext context, SessionState state) {
+    if (state is ActiveUserSessionState) {
+      _onUnlockedKeychain(context);
+    } else if (state is GuestSessionState) {
+      _onLockedKeychain(context);
+    }
+  }
+
+  void _onUnlockedKeychain(BuildContext context) {
+    VoicesSnackBar(
+      type: VoicesSnackBarType.success,
+      behavior: SnackBarBehavior.floating,
+      icon: VoicesAssets.icons.lockOpen.buildIcon(),
+      title: context.l10n.unlockSnackbarTitle,
+      message: context.l10n.unlockSnackbarMessage,
+    ).show(context);
+  }
+
+  void _onLockedKeychain(BuildContext context) {
+    VoicesSnackBar(
+      type: VoicesSnackBarType.error,
+      behavior: SnackBarBehavior.floating,
+      icon: VoicesAssets.icons.lockClosed.buildIcon(),
+      title: context.l10n.lockSnackbarTitle,
+      message: context.l10n.lockSnackbarMessage,
+    ).show(context);
+  }
+}
diff --git a/catalyst_voices/lib/common/error_handler.dart b/catalyst_voices/lib/common/error_handler.dart
index 13ce296d18..2a85b2ded8 100644
--- a/catalyst_voices/lib/common/error_handler.dart
+++ b/catalyst_voices/lib/common/error_handler.dart
@@ -1,16 +1,46 @@
 //ignore_for_file: one_member_abstracts
 
+import 'dart:async';
+
 import 'package:catalyst_voices/widgets/snackbar/voices_snackbar.dart';
 import 'package:catalyst_voices/widgets/snackbar/voices_snackbar_type.dart';
+import 'package:catalyst_voices_blocs/catalyst_voices_blocs.dart';
 import 'package:catalyst_voices_view_models/catalyst_voices_view_models.dart';
 import 'package:flutter/widgets.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 
+/// An interface of an abstract error handler.
 abstract interface class ErrorHandler {
   void handleError(Object error);
 }
 
-mixin ErrorHandlerStateMixin<T extends StatefulWidget> on State<T>
-    implements ErrorHandler {
+/// A convenient mixin that subscribes to the [ErrorEmitter]
+/// obtained from the [errorEmitter] and calls the [handleError].
+///
+/// After the widget is disposed the error stream is disposed too.
+mixin ErrorHandlerStateMixin<E extends ErrorEmitter, T extends StatefulWidget>
+    on State<T> implements ErrorHandler {
+  StreamSubscription<Object>? _errorSub;
+
+  @override
+  void initState() {
+    super.initState();
+    _errorSub = errorEmitter.errorStream.listen(handleError);
+  }
+
+  @override
+  void dispose() {
+    unawaited(_errorSub?.cancel());
+    _errorSub = null;
+    super.dispose();
+  }
+
+  /// A method that can be overridden to provide a custom error emitter.
+  ///
+  /// If this method is not overriden then the emitter of type [E]
+  /// must be provided in a widget tree so that context.read can find it.
+  E get errorEmitter => context.read<E>();
+
   @override
   void handleError(Object error) {
     if (error is LocalizedException) {
@@ -19,7 +49,9 @@ mixin ErrorHandlerStateMixin<T extends StatefulWidget> on State<T>
   }
 
   void handleLocalizedException(LocalizedException exception) {
-    // TODO(damian-molinski): VoicesSnackBar does not support custom text yet.
-    const VoicesSnackBar(type: VoicesSnackBarType.error).show(context);
+    VoicesSnackBar(
+      type: VoicesSnackBarType.error,
+      message: exception.message(context),
+    ).show(context);
   }
 }
diff --git a/catalyst_voices/lib/pages/account/unlock_keychain_dialog.dart b/catalyst_voices/lib/pages/account/unlock_keychain_dialog.dart
new file mode 100644
index 0000000000..b606edd9da
--- /dev/null
+++ b/catalyst_voices/lib/pages/account/unlock_keychain_dialog.dart
@@ -0,0 +1,171 @@
+import 'package:catalyst_voices/common/error_handler.dart';
+import 'package:catalyst_voices/pages/registration/pictures/unlock_keychain_picture.dart';
+import 'package:catalyst_voices/pages/registration/widgets/information_panel.dart';
+import 'package:catalyst_voices/pages/registration/widgets/registration_stage_message.dart';
+import 'package:catalyst_voices/widgets/widgets.dart';
+import 'package:catalyst_voices_blocs/catalyst_voices_blocs.dart';
+import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
+import 'package:catalyst_voices_services/catalyst_voices_services.dart';
+import 'package:catalyst_voices_view_models/catalyst_voices_view_models.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+/// A dialog which allows to unlock the session (keychain).
+class UnlockKeychainDialog extends StatefulWidget {
+  const UnlockKeychainDialog({super.key});
+
+  static Future<void> show(BuildContext context) {
+    return VoicesDialog.show(
+      context: context,
+      routeSettings: const RouteSettings(name: '/unlock'),
+      builder: (context) => const UnlockKeychainDialog(),
+      barrierDismissible: false,
+    );
+  }
+
+  @override
+  State<UnlockKeychainDialog> createState() => _UnlockKeychainDialogState();
+}
+
+class _UnlockKeychainDialogState extends State<UnlockKeychainDialog>
+    with ErrorHandlerStateMixin<SessionBloc, UnlockKeychainDialog> {
+  final TextEditingController _passwordController = TextEditingController();
+  LocalizedException? _error;
+
+  @override
+  void dispose() {
+    _passwordController.dispose();
+    super.dispose();
+  }
+
+  @override
+  void handleError(Object error) {
+    setState(() {
+      _error = error is LocalizedException
+          ? error
+          : const LocalizedUnlockPasswordException();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocListener<SessionBloc, SessionState>(
+      listener: _handleSessionChange,
+      child: VoicesTwoPaneDialog(
+        left: InformationPanel(
+          title: context.l10n.unlockDialogHeader,
+          picture: const UnlockKeychainPicture(),
+        ),
+        right: _UnlockPasswordPanel(
+          controller: _passwordController,
+          error: _error,
+          onUnlock: _onUnlock,
+        ),
+      ),
+    );
+  }
+
+  void _handleSessionChange(BuildContext context, SessionState state) {
+    if (state is ActiveUserSessionState) {
+      Navigator.of(context).pop();
+    }
+  }
+
+  void _onUnlock() {
+    setState(() {
+      _error = null;
+    });
+
+    final password = _passwordController.text;
+    final unlockFactor = PasswordLockFactor(password);
+    context
+        .read<SessionBloc>()
+        .add(UnlockSessionEvent(unlockFactor: unlockFactor));
+  }
+}
+
+class _UnlockPasswordPanel extends StatelessWidget {
+  final TextEditingController controller;
+  final LocalizedException? error;
+  final VoidCallback onUnlock;
+
+  const _UnlockPasswordPanel({
+    required this.controller,
+    required this.error,
+    required this.onUnlock,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        const SizedBox(height: 24),
+        RegistrationStageMessage(
+          title: Text(context.l10n.unlockDialogTitle),
+          subtitle: Text(context.l10n.unlockDialogContent),
+        ),
+        const SizedBox(height: 24),
+        _UnlockPassword(
+          controller: controller,
+          error: error,
+        ),
+        const Spacer(),
+        _Navigation(
+          onUnlock: onUnlock,
+        ),
+      ],
+    );
+  }
+}
+
+class _UnlockPassword extends StatelessWidget {
+  final TextEditingController controller;
+  final LocalizedException? error;
+
+  const _UnlockPassword({
+    required this.controller,
+    required this.error,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return VoicesPasswordTextField(
+      controller: controller,
+      decoration: VoicesTextFieldDecoration(
+        labelText: context.l10n.unlockDialogHint,
+        errorText: error?.message(context),
+        hintText: context.l10n.passwordLabelText,
+      ),
+    );
+  }
+}
+
+class _Navigation extends StatelessWidget {
+  final VoidCallback onUnlock;
+
+  const _Navigation({
+    required this.onUnlock,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      children: [
+        Expanded(
+          child: VoicesOutlinedButton(
+            onTap: () => Navigator.of(context).pop(),
+            child: Text(context.l10n.continueAsGuest),
+          ),
+        ),
+        const SizedBox(width: 10),
+        Expanded(
+          child: VoicesFilledButton(
+            onTap: onUnlock,
+            child: Text(context.l10n.confirmPassword),
+          ),
+        ),
+      ],
+    );
+  }
+}
diff --git a/catalyst_voices/lib/pages/registration/pictures/unlock_keychain_picture.dart b/catalyst_voices/lib/pages/registration/pictures/unlock_keychain_picture.dart
new file mode 100644
index 0000000000..ec5b9dc8e7
--- /dev/null
+++ b/catalyst_voices/lib/pages/registration/pictures/unlock_keychain_picture.dart
@@ -0,0 +1,26 @@
+import 'package:catalyst_voices/pages/registration/pictures/task_picture.dart';
+import 'package:catalyst_voices_brands/catalyst_voices_brands.dart';
+import 'package:flutter/material.dart';
+
+class UnlockKeychainPicture extends StatelessWidget {
+  const UnlockKeychainPicture({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return TaskPicture(
+      child: TaskPictureIconBox(
+        child: AspectRatio(
+          aspectRatio: 101 / 42,
+          child: Container(
+            height: double.infinity,
+            margin: const EdgeInsets.all(10),
+            decoration: BoxDecoration(
+              color: Theme.of(context).colors.elevationsOnSurfaceNeutralLv0,
+              borderRadius: BorderRadius.circular(8),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}
diff --git a/catalyst_voices/lib/pages/registration/registration_dialog.dart b/catalyst_voices/lib/pages/registration/registration_dialog.dart
index 172ebc3fd4..a479796b5d 100644
--- a/catalyst_voices/lib/pages/registration/registration_dialog.dart
+++ b/catalyst_voices/lib/pages/registration/registration_dialog.dart
@@ -28,26 +28,18 @@ class RegistrationDialog extends StatefulWidget {
 }
 
 class _RegistrationDialogState extends State<RegistrationDialog>
-    with ErrorHandlerStateMixin {
-  late final RegistrationCubit _cubit;
-  StreamSubscription<Object>? _errorSub;
-
-  @override
-  void initState() {
-    super.initState();
-    _cubit = Dependencies.instance.get<RegistrationCubit>();
-    _errorSub = _cubit.errorStream.listen(handleError);
-  }
+    with ErrorHandlerStateMixin<RegistrationCubit, RegistrationDialog> {
+  late final RegistrationCubit _cubit = Dependencies.instance.get();
 
   @override
   void dispose() {
-    unawaited(_errorSub?.cancel());
-    _errorSub = null;
-
     unawaited(_cubit.close());
     super.dispose();
   }
 
+  @override
+  RegistrationCubit get errorEmitter => _cubit;
+
   @override
   Widget build(BuildContext context) {
     return BlocProvider.value(
diff --git a/catalyst_voices/lib/widgets/app_bar/session/session_action_header.dart b/catalyst_voices/lib/widgets/app_bar/session/session_action_header.dart
index d354771106..23c2276461 100644
--- a/catalyst_voices/lib/widgets/app_bar/session/session_action_header.dart
+++ b/catalyst_voices/lib/widgets/app_bar/session/session_action_header.dart
@@ -1,3 +1,6 @@
+import 'dart:async';
+
+import 'package:catalyst_voices/pages/account/unlock_keychain_dialog.dart';
 import 'package:catalyst_voices/widgets/buttons/voices_filled_button.dart';
 import 'package:catalyst_voices/widgets/buttons/voices_icon_button.dart';
 import 'package:catalyst_voices_assets/catalyst_voices_assets.dart';
@@ -52,9 +55,7 @@ class _LockButton extends StatelessWidget {
   Widget build(BuildContext context) {
     return VoicesIconButton.filled(
       style: const ButtonStyle(shape: WidgetStatePropertyAll(CircleBorder())),
-      onTap: () {
-        context.read<SessionBloc>().add(const GuestSessionEvent());
-      },
+      onTap: () => context.read<SessionBloc>().add(const LockSessionEvent()),
       child: VoicesAssets.icons.lockClosed.buildIcon(),
     );
   }
@@ -67,9 +68,7 @@ class _UnlockButton extends StatelessWidget {
   Widget build(BuildContext context) {
     return VoicesFilledButton(
       trailing: VoicesAssets.icons.lockOpen.buildIcon(),
-      onTap: () {
-        context.read<SessionBloc>().add(const ActiveUserSessionEvent());
-      },
+      onTap: () => unawaited(UnlockKeychainDialog.show(context)),
       child: Text(context.l10n.unlock),
     );
   }
diff --git a/catalyst_voices/lib/widgets/app_bar/session/session_state_header.dart b/catalyst_voices/lib/widgets/app_bar/session/session_state_header.dart
index 79fad5e330..537b095f55 100644
--- a/catalyst_voices/lib/widgets/app_bar/session/session_state_header.dart
+++ b/catalyst_voices/lib/widgets/app_bar/session/session_state_header.dart
@@ -21,15 +21,23 @@ class SessionStateHeader extends StatelessWidget {
           GuestSessionState() => const _GuestButton(),
           ActiveUserSessionState(:final user) => AccountPopup(
               avatarLetter: user.acronym,
-              onLockAccountTap: () => debugPrint('Lock account'),
-              onProfileKeychainTap: () => unawaited(
-                const AccountRoute().push<void>(context),
-              ),
+              onLockAccountTap: () => _onLockAccount(context),
+              onProfileKeychainTap: () => _onSeeProfile(context),
             ),
         };
       },
     );
   }
+
+  void _onLockAccount(BuildContext context) {
+    context.read<SessionBloc>().add(const LockSessionEvent());
+  }
+
+  void _onSeeProfile(BuildContext context) {
+    unawaited(
+      const AccountRoute().push<void>(context),
+    );
+  }
 }
 
 class _GuestButton extends StatelessWidget {
diff --git a/catalyst_voices/lib/widgets/footers/standard_links_page_footer.dart b/catalyst_voices/lib/widgets/footers/standard_links_page_footer.dart
index e5f982340d..c8370ce61a 100644
--- a/catalyst_voices/lib/widgets/footers/standard_links_page_footer.dart
+++ b/catalyst_voices/lib/widgets/footers/standard_links_page_footer.dart
@@ -9,7 +9,7 @@ class StandardLinksPageFooter extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    // TODO(damian): implement proper routing actions once we have them
+    // TODO(damian-molinski): implement proper routing actions once we have them
     return LinksPageFooter(
       upperChildren: [
         LinkText(
diff --git a/catalyst_voices/lib/widgets/snackbar/voices_snackbar.dart b/catalyst_voices/lib/widgets/snackbar/voices_snackbar.dart
index 02c584363a..f74e85d660 100644
--- a/catalyst_voices/lib/widgets/snackbar/voices_snackbar.dart
+++ b/catalyst_voices/lib/widgets/snackbar/voices_snackbar.dart
@@ -1,7 +1,11 @@
+import 'dart:math';
+
+import 'package:catalyst_voices/widgets/common/affix_decorator.dart';
+import 'package:catalyst_voices/widgets/snackbar/voices_snackbar_action.dart';
 import 'package:catalyst_voices/widgets/snackbar/voices_snackbar_type.dart';
 import 'package:catalyst_voices_assets/catalyst_voices_assets.dart';
 import 'package:catalyst_voices_brands/catalyst_voices_brands.dart';
-import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
+import 'package:catalyst_voices_shared/catalyst_voices_shared.dart';
 import 'package:flutter/material.dart';
 
 /// [VoicesSnackBar] is a custom [SnackBar] widget that displays messages with
@@ -14,12 +18,19 @@ class VoicesSnackBar extends StatelessWidget {
   /// which determines its appearance and behavior.
   final VoicesSnackBarType type;
 
-  /// Function to be executed when the primary action button is pressed.
-  final VoidCallback? onPrimaryPressed;
+  /// A custom icon. Overrides the default one specified by [type].
+  final Widget? icon;
+
+  /// A custom title. Overrides the default one specified by [type].
+  final String? title;
+
+  /// A custom message. Overrides the default one specified by [type].
+  final String? message;
 
-  /// Callback function to be executed when the secondary action button is
-  /// pressed.
-  final VoidCallback? onSecondaryPressed;
+  /// The list of actions attached to the bottom of the snackBar.
+  ///
+  /// See [VoicesSnackBarPrimaryAction] and [VoicesSnackBarSecondaryAction].
+  final List<Widget> actions;
 
   /// Callback function to be executed when the close button is pressed.
   final VoidCallback? onClosePressed;
@@ -27,17 +38,24 @@ class VoicesSnackBar extends StatelessWidget {
   /// The behavior of the [VoicesSnackBar], which can be fixed or floating.
   final SnackBarBehavior? behavior;
 
-  /// The padding around the content of the [VoicesSnackBar].
+  /// The padding around the the [VoicesSnackBar].
   final EdgeInsetsGeometry? padding;
 
   /// The width of the [VoicesSnackBar].
+  ///
+  /// If null and [behavior] is [SnackBarBehavior.floating] then snackbar
+  /// will calculate it's size using the following formula:
+  /// - max(screenWidth * 0.4, 300)
+  /// but no more than the screenWidth.
   final double? width;
 
   const VoicesSnackBar({
     super.key,
     required this.type,
-    this.onPrimaryPressed,
-    this.onSecondaryPressed,
+    this.icon,
+    this.title,
+    this.message,
+    this.actions = const [],
     this.onClosePressed,
     this.width,
     this.behavior = SnackBarBehavior.fixed,
@@ -48,97 +66,61 @@ class VoicesSnackBar extends StatelessWidget {
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
     final textTheme = theme.textTheme;
-    final l10n = context.l10n;
 
     return DecoratedBox(
       decoration: BoxDecoration(
         color: type.backgroundColor(context),
         borderRadius: BorderRadius.circular(8),
       ),
-      child: Stack(
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        crossAxisAlignment: CrossAxisAlignment.start,
         children: [
-          Positioned(
-            top: 12,
-            right: 12,
-            child: IconButton(
-              icon: VoicesAssets.icons.x.buildIcon(
-                size: 24,
-                color: theme.colors.iconsForeground,
+          Flexible(
+            child: Padding(
+              padding: const EdgeInsets.symmetric(
+                horizontal: 16,
+                vertical: 8,
               ),
-              onPressed: onClosePressed,
-            ),
-          ),
-          Column(
-            children: [
-              Padding(
-                padding:
-                    const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
-                child: Row(
-                  children: [
-                    type.icon().buildIcon(
-                          size: 20,
-                          color: type.iconColor(context),
-                        ),
-                    const SizedBox(width: 16),
-                    Text(
-                      type.title(context),
-                      style: TextStyle(
-                        color: type.titleColor(context),
-                        fontSize: textTheme.titleMedium?.fontSize,
-                        fontWeight: textTheme.titleMedium?.fontWeight,
-                        fontFamily: textTheme.titleMedium?.fontFamily,
-                      ),
-                    ),
-                  ],
-                ),
-              ),
-              Padding(
-                padding: const EdgeInsets.only(
-                  left: 48,
-                ),
-                child: Row(
-                  children: [
-                    Text(
-                      type.message(context),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                children: [
+                  _IconAndTitle(
+                    type: type,
+                    icon: icon ?? type.icon().buildIcon(),
+                    title: title ?? type.title(context),
+                  ),
+                  Padding(
+                    padding: const EdgeInsets.only(left: 28),
+                    child: Text(
+                      message ?? type.message(context),
                       style: textTheme.bodyMedium,
                     ),
-                  ],
-                ),
-              ),
-              const SizedBox(height: 18),
-              Padding(
-                padding: const EdgeInsets.only(
-                  left: 36,
-                ),
-                child: Row(
-                  children: [
-                    TextButton(
-                      onPressed: onPrimaryPressed,
-                      child: Text(
-                        type == VoicesSnackBarType.success
-                            ? l10n.snackbarOkButtonText
-                            : l10n.snackbarRefreshButtonText,
-                        style: TextStyle(
-                          color: theme.colors.textPrimary,
-                        ),
-                      ),
-                    ),
-                    const SizedBox(width: 8),
-                    TextButton(
-                      onPressed: onSecondaryPressed,
-                      child: Text(
-                        l10n.snackbarMoreButtonText,
-                        style: TextStyle(
-                          color: theme.colors.textPrimary,
-                          decoration: TextDecoration.underline,
-                        ),
+                  ),
+                  if (actions.isNotEmpty) ...[
+                    const SizedBox(height: 12),
+                    Padding(
+                      padding: const EdgeInsets.only(left: 16),
+                      child: Row(
+                        children: actions
+                            .separatedBy(const SizedBox(width: 8))
+                            .toList(),
                       ),
                     ),
                   ],
-                ),
+                ],
               ),
-              const SizedBox(height: 18),
-            ],
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.only(top: 8, right: 4),
+            child: IconButton(
+              icon: VoicesAssets.icons.x.buildIcon(
+                size: 24,
+                color: theme.colors.iconsForeground,
+              ),
+              onPressed: onClosePressed ?? () => hideCurrent(context),
+            ),
           ),
         ],
       ),
@@ -150,7 +132,9 @@ class VoicesSnackBar extends StatelessWidget {
       SnackBar(
         content: this,
         behavior: behavior,
-        width: behavior == SnackBarBehavior.floating ? width : null,
+        width: _calculateSnackBarWidth(
+          screenWidth: MediaQuery.sizeOf(context).width,
+        ),
         padding: padding,
         elevation: 0,
         backgroundColor: Colors.transparent,
@@ -158,6 +142,53 @@ class VoicesSnackBar extends StatelessWidget {
     );
   }
 
+  double? _calculateSnackBarWidth({required double screenWidth}) {
+    switch (behavior) {
+      case null:
+      case SnackBarBehavior.fixed:
+        // custom width not supported
+        return null;
+      case SnackBarBehavior.floating:
+        return max(screenWidth * 0.4, 300).clamp(0.0, screenWidth).toDouble();
+    }
+  }
+
   static void hideCurrent(BuildContext context) =>
       ScaffoldMessenger.of(context).hideCurrentSnackBar();
 }
+
+class _IconAndTitle extends StatelessWidget {
+  final VoicesSnackBarType type;
+  final Widget icon;
+  final String title;
+
+  const _IconAndTitle({
+    required this.type,
+    required this.icon,
+    required this.title,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final textTheme = Theme.of(context).textTheme;
+
+    return AffixDecorator(
+      prefix: IconTheme(
+        data: IconThemeData(
+          size: 20,
+          color: type.iconColor(context),
+        ),
+        child: icon,
+      ),
+      child: Text(
+        title,
+        style: TextStyle(
+          color: type.titleColor(context),
+          fontSize: textTheme.titleMedium?.fontSize,
+          fontWeight: textTheme.titleMedium?.fontWeight,
+          fontFamily: textTheme.titleMedium?.fontFamily,
+        ),
+      ),
+    );
+  }
+}
diff --git a/catalyst_voices/lib/widgets/snackbar/voices_snackbar_action.dart b/catalyst_voices/lib/widgets/snackbar/voices_snackbar_action.dart
new file mode 100644
index 0000000000..5d0742d58a
--- /dev/null
+++ b/catalyst_voices/lib/widgets/snackbar/voices_snackbar_action.dart
@@ -0,0 +1,51 @@
+import 'package:catalyst_voices_brands/catalyst_voices_brands.dart';
+import 'package:flutter/material.dart';
+
+class VoicesSnackBarPrimaryAction extends StatelessWidget {
+  final VoidCallback onPressed;
+  final Widget child;
+
+  const VoicesSnackBarPrimaryAction({
+    super.key,
+    required this.onPressed,
+    required this.child,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return TextButton(
+      onPressed: onPressed,
+      child: DefaultTextStyle(
+        style: TextStyle(
+          color: Theme.of(context).colors.textPrimary,
+        ),
+        child: child,
+      ),
+    );
+  }
+}
+
+class VoicesSnackBarSecondaryAction extends StatelessWidget {
+  final VoidCallback onPressed;
+  final Widget child;
+
+  const VoicesSnackBarSecondaryAction({
+    super.key,
+    required this.onPressed,
+    required this.child,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return TextButton(
+      onPressed: onPressed,
+      child: DefaultTextStyle(
+        style: TextStyle(
+          color: Theme.of(context).colors.textPrimary,
+          decoration: TextDecoration.underline,
+        ),
+        child: child,
+      ),
+    );
+  }
+}
diff --git a/catalyst_voices/packages/catalyst_voices_blocs/lib/src/bloc_error_emitter_mixin.dart b/catalyst_voices/packages/catalyst_voices_blocs/lib/src/bloc_error_emitter_mixin.dart
index e433b92881..8a03613824 100644
--- a/catalyst_voices/packages/catalyst_voices_blocs/lib/src/bloc_error_emitter_mixin.dart
+++ b/catalyst_voices/packages/catalyst_voices_blocs/lib/src/bloc_error_emitter_mixin.dart
@@ -2,9 +2,16 @@ import 'dart:async';
 
 import 'package:flutter_bloc/flutter_bloc.dart';
 
-mixin BlocErrorEmitterMixin<State> on BlocBase<State> {
+/// An interface of an abstract error emitter.
+abstract interface class ErrorEmitter {
+  /// The asynchronous error stream that can be listened by error handlers.
+  Stream<Object> get errorStream;
+}
+
+mixin BlocErrorEmitterMixin<State> on BlocBase<State> implements ErrorEmitter {
   late final _errorController = StreamController<Object>.broadcast();
 
+  @override
   Stream<Object> get errorStream => _errorController.stream;
 
   void emitError(Object error) {
diff --git a/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_bloc.dart b/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_bloc.dart
index a5434019ad..e38d3ad0a0 100644
--- a/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_bloc.dart
+++ b/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_bloc.dart
@@ -1,17 +1,21 @@
 import 'package:catalyst_cardano_serialization/catalyst_cardano_serialization.dart';
+import 'package:catalyst_voices_blocs/src/bloc_error_emitter_mixin.dart';
 import 'package:catalyst_voices_blocs/src/session/session_event.dart';
 import 'package:catalyst_voices_blocs/src/session/session_state.dart';
 import 'package:catalyst_voices_models/catalyst_voices_models.dart';
 import 'package:catalyst_voices_services/catalyst_voices_services.dart';
+import 'package:catalyst_voices_view_models/catalyst_voices_view_models.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 
-// TODO(dtscalac): unlock session
 /// Manages the user session.
-final class SessionBloc extends Bloc<SessionEvent, SessionState> {
+final class SessionBloc extends Bloc<SessionEvent, SessionState>
+    with BlocErrorEmitterMixin {
   final Keychain _keychain;
 
   SessionBloc(this._keychain) : super(const VisitorSessionState()) {
     on<RestoreSessionEvent>(_onRestoreSessionEvent);
+    on<UnlockSessionEvent>(_onUnlockSessionEvent);
+    on<LockSessionEvent>(_onLockSessionEvent);
     on<NextStateSessionEvent>(_onNextStateEvent);
     on<VisitorSessionEvent>(_onVisitorEvent);
     on<GuestSessionEvent>(_onGuestEvent);
@@ -26,12 +30,36 @@ final class SessionBloc extends Bloc<SessionEvent, SessionState> {
     if (!await _keychain.hasSeedPhrase) {
       emit(const VisitorSessionState());
     } else if (await _keychain.isUnlocked) {
-      emit(ActiveUserSessionState(user: _dummyUser));
+      // TODO(damian-molinski): we shouldn't keep the keychain unlocked
+      // after leaving the app. In the future once keychain stays locked
+      // when leaving the app the logic here is not needed.
+      await _keychain.lock();
+      emit(const GuestSessionState());
     } else {
       emit(const GuestSessionState());
     }
   }
 
+  Future<void> _onUnlockSessionEvent(
+    UnlockSessionEvent event,
+    Emitter<SessionState> emit,
+  ) async {
+    final unlocked = await _keychain.unlock(event.unlockFactor);
+    if (unlocked) {
+      emit(ActiveUserSessionState(user: _dummyUser));
+    } else {
+      emitError(const LocalizedUnlockPasswordException());
+    }
+  }
+
+  Future<void> _onLockSessionEvent(
+    LockSessionEvent event,
+    Emitter<SessionState> emit,
+  ) async {
+    await _keychain.lock();
+    emit(const GuestSessionState());
+  }
+
   void _onNextStateEvent(
     NextStateSessionEvent event,
     Emitter<SessionState> emit,
@@ -49,7 +77,9 @@ final class SessionBloc extends Bloc<SessionEvent, SessionState> {
     VisitorSessionEvent event,
     Emitter<SessionState> emit,
   ) async {
-    await _keychain.clearAndLock();
+    if (await _keychain.hasSeedPhrase) {
+      await _keychain.clearAndLock();
+    }
 
     emit(const VisitorSessionState());
   }
diff --git a/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_event.dart b/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_event.dart
index aaa6012abf..d87c8d8935 100644
--- a/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_event.dart
+++ b/catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_event.dart
@@ -1,3 +1,4 @@
+import 'package:catalyst_voices_services/catalyst_voices_services.dart';
 import 'package:equatable/equatable.dart';
 
 /// Describes events that change the user session.
@@ -13,6 +14,29 @@ final class RestoreSessionEvent extends SessionEvent {
   List<Object?> get props => [];
 }
 
+/// An event to unlock the session with given [unlockFactor].
+final class UnlockSessionEvent extends SessionEvent {
+  final LockFactor unlockFactor;
+
+  const UnlockSessionEvent({required this.unlockFactor});
+
+  @override
+  List<Object?> get props => [unlockFactor];
+
+  // Deliberately override the toString() so that
+  // we don't expose the unlockFactor in the logs.
+  @override
+  String toString() => 'UnlockSessionEvent';
+}
+
+/// An event to lock the session.
+final class LockSessionEvent extends SessionEvent {
+  const LockSessionEvent();
+
+  @override
+  List<Object?> get props => [];
+}
+
 /// Dummy implementation of session management,
 /// just toggles the next session state or reset to the initial one.
 final class NextStateSessionEvent extends SessionEvent {
diff --git a/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations.dart b/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations.dart
index b472432839..47b88a2ba9 100644
--- a/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations.dart
+++ b/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations.dart
@@ -1738,6 +1738,66 @@ abstract class VoicesLocalizations {
   /// **'With over 300 trillion possible combinations, your 12 word seed phrase is great for keeping your account safe.  

But it can be a bit tedious to enter every single time you want to use the app.  

In this next step, you\'ll set your Unlock Password for your current device. It\'s like a shortcut for proving ownership of your Keychain.  

Whenever you recover your account for the first time on a new device, you\'ll need to use your Catalyst Keychain to get started. Every time after that, you can use your Unlock Password to quickly regain access.'**
   String get recoveryUnlockPasswordInstructionsSubtitle;
 
+  /// The header label in unlock dialog.
+  ///
+  /// In en, this message translates to:
+  /// **'Unlock Catalyst'**
+  String get unlockDialogHeader;
+
+  /// The title label in unlock dialog.
+  ///
+  /// In en, this message translates to:
+  /// **'Welcome back!'**
+  String get unlockDialogTitle;
+
+  /// The content (body) in unlock dialog.
+  ///
+  /// In en, this message translates to:
+  /// **'Please enter your device specific unlock password\nto unlock Catalyst Voices.'**
+  String get unlockDialogContent;
+
+  /// The hint for the unlock password field.
+  ///
+  /// In en, this message translates to:
+  /// **'Enter your Unlock password'**
+  String get unlockDialogHint;
+
+  /// An error message shown below the password field when the password is incorrect.
+  ///
+  /// In en, this message translates to:
+  /// **'Password is incorrect, try again.'**
+  String get unlockDialogIncorrectPassword;
+
+  /// The message shown when asking the user to login/unlock and the user wants to cancel the process.
+  ///
+  /// In en, this message translates to:
+  /// **'Continue as guest'**
+  String get continueAsGuest;
+
+  /// The title shown in confirmation snackbar after unlocking the keychain.
+  ///
+  /// In en, this message translates to:
+  /// **'Catalyst unlocked!'**
+  String get unlockSnackbarTitle;
+
+  /// The message shown below the title in confirmation snackbar after unlocking the keychain.
+  ///
+  /// In en, this message translates to:
+  /// **'You can now fully use the application.'**
+  String get unlockSnackbarMessage;
+
+  /// The title shown in confirmation snackbar after locking the keychain.
+  ///
+  /// In en, this message translates to:
+  /// **'Catalyst locked'**
+  String get lockSnackbarTitle;
+
+  /// The message shown below the title in confirmation snackbar after locking the keychain.
+  ///
+  /// In en, this message translates to:
+  /// **'Catalyst is now in guest/locked mode.'**
+  String get lockSnackbarMessage;
+
   /// No description provided for @recoverySuccessTitle.
   ///
   /// In en, this message translates to:
diff --git a/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_en.dart b/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_en.dart
index bc75761b32..9900fc75d1 100644
--- a/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_en.dart
+++ b/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_en.dart
@@ -914,6 +914,36 @@ class VoicesLocalizationsEn extends VoicesLocalizations {
   @override
   String get recoveryUnlockPasswordInstructionsSubtitle => 'With over 300 trillion possible combinations, your 12 word seed phrase is great for keeping your account safe.  

But it can be a bit tedious to enter every single time you want to use the app.  

In this next step, you\'ll set your Unlock Password for your current device. It\'s like a shortcut for proving ownership of your Keychain.  

Whenever you recover your account for the first time on a new device, you\'ll need to use your Catalyst Keychain to get started. Every time after that, you can use your Unlock Password to quickly regain access.';
 
+  @override
+  String get unlockDialogHeader => 'Unlock Catalyst';
+
+  @override
+  String get unlockDialogTitle => 'Welcome back!';
+
+  @override
+  String get unlockDialogContent => 'Please enter your device specific unlock password\nto unlock Catalyst Voices.';
+
+  @override
+  String get unlockDialogHint => 'Enter your Unlock password';
+
+  @override
+  String get unlockDialogIncorrectPassword => 'Password is incorrect, try again.';
+
+  @override
+  String get continueAsGuest => 'Continue as guest';
+
+  @override
+  String get unlockSnackbarTitle => 'Catalyst unlocked!';
+
+  @override
+  String get unlockSnackbarMessage => 'You can now fully use the application.';
+
+  @override
+  String get lockSnackbarTitle => 'Catalyst locked';
+
+  @override
+  String get lockSnackbarMessage => 'Catalyst is now in guest/locked mode.';
+
   @override
   String get recoverySuccessTitle => 'Congratulations your Catalyst 
Keychain is restored!';
 
diff --git a/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_es.dart b/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_es.dart
index edbee7bc55..bbf30a8d75 100644
--- a/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_es.dart
+++ b/catalyst_voices/packages/catalyst_voices_localization/lib/generated/catalyst_voices_localizations_es.dart
@@ -914,6 +914,36 @@ class VoicesLocalizationsEs extends VoicesLocalizations {
   @override
   String get recoveryUnlockPasswordInstructionsSubtitle => 'With over 300 trillion possible combinations, your 12 word seed phrase is great for keeping your account safe.  

But it can be a bit tedious to enter every single time you want to use the app.  

In this next step, you\'ll set your Unlock Password for your current device. It\'s like a shortcut for proving ownership of your Keychain.  

Whenever you recover your account for the first time on a new device, you\'ll need to use your Catalyst Keychain to get started. Every time after that, you can use your Unlock Password to quickly regain access.';
 
+  @override
+  String get unlockDialogHeader => 'Unlock Catalyst';
+
+  @override
+  String get unlockDialogTitle => 'Welcome back!';
+
+  @override
+  String get unlockDialogContent => 'Please enter your device specific unlock password\nto unlock Catalyst Voices.';
+
+  @override
+  String get unlockDialogHint => 'Enter your Unlock password';
+
+  @override
+  String get unlockDialogIncorrectPassword => 'Password is incorrect, try again.';
+
+  @override
+  String get continueAsGuest => 'Continue as guest';
+
+  @override
+  String get unlockSnackbarTitle => 'Catalyst unlocked!';
+
+  @override
+  String get unlockSnackbarMessage => 'You can now fully use the application.';
+
+  @override
+  String get lockSnackbarTitle => 'Catalyst locked';
+
+  @override
+  String get lockSnackbarMessage => 'Catalyst is now in guest/locked mode.';
+
   @override
   String get recoverySuccessTitle => 'Congratulations your Catalyst 
Keychain is restored!';
 
diff --git a/catalyst_voices/packages/catalyst_voices_localization/lib/l10n/intl_en.arb b/catalyst_voices/packages/catalyst_voices_localization/lib/l10n/intl_en.arb
index e1c28f58de..cb29aa5008 100644
--- a/catalyst_voices/packages/catalyst_voices_localization/lib/l10n/intl_en.arb
+++ b/catalyst_voices/packages/catalyst_voices_localization/lib/l10n/intl_en.arb
@@ -912,6 +912,46 @@
   "recoveryAccountDetailsAction": "Set unlock password for this device",
   "recoveryUnlockPasswordInstructionsTitle": "Set your Catalyst unlock password f\u2028or this device",
   "recoveryUnlockPasswordInstructionsSubtitle": "With over 300 trillion possible combinations, your 12 word seed phrase is great for keeping your account safe.  \u2028\u2028But it can be a bit tedious to enter every single time you want to use the app.  \u2028\u2028In this next step, you'll set your Unlock Password for your current device. It's like a shortcut for proving ownership of your Keychain.  \u2028\u2028Whenever you recover your account for the first time on a new device, you'll need to use your Catalyst Keychain to get started. Every time after that, you can use your Unlock Password to quickly regain access.",
+  "unlockDialogHeader": "Unlock Catalyst",
+  "@unlockDialogHeader": {
+    "description": "The header label in unlock dialog."
+  },
+  "unlockDialogTitle": "Welcome back!",
+  "@unlockDialogTitle": {
+    "description": "The title label in unlock dialog."
+  },
+  "unlockDialogContent": "Please enter your device specific unlock password\nto unlock Catalyst Voices.",
+  "@unlockDialogContent": {
+    "description": "The content (body) in unlock dialog."
+  },
+  "unlockDialogHint": "Enter your Unlock password",
+  "@unlockDialogHint": {
+    "description": "The hint for the unlock password field."
+  },
+  "unlockDialogIncorrectPassword": "Password is incorrect, try again.",
+  "@unlockDialogIncorrectPassword": {
+    "description": "An error message shown below the password field when the password is incorrect."
+  },
+  "continueAsGuest": "Continue as guest",
+  "@continueAsGuest": {
+    "description": "The message shown when asking the user to login/unlock and the user wants to cancel the process."
+  },
+  "unlockSnackbarTitle": "Catalyst unlocked!",
+  "@unlockSnackbarTitle": {
+    "description": "The title shown in confirmation snackbar after unlocking the keychain."
+  },
+  "unlockSnackbarMessage": "You can now fully use the application.",
+  "@unlockSnackbarMessage": {
+    "description": "The message shown below the title in confirmation snackbar after unlocking the keychain."
+  },
+  "lockSnackbarTitle": "Catalyst locked",
+  "@lockSnackbarTitle": {
+    "description": "The title shown in confirmation snackbar after locking the keychain."
+  },
+  "lockSnackbarMessage": "Catalyst is now in guest/locked mode.",
+  "@lockSnackbarMessage": {
+    "description": "The message shown below the title in confirmation snackbar after locking the keychain."
+  },
   "recoverySuccessTitle": "Congratulations your Catalyst \u2028Keychain is restored!",
   "recoverySuccessSubtitle": "You have successfully restored your Catalyst Keychain, and unlocked Catalyst Voices on this device.",
   "recoverySuccessGoToDashboard": "Jump into the Discovery space / Dashboard",
diff --git a/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/key_derivation.dart b/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/key_derivation.dart
index cf95a0d0cc..53ec2f37d9 100644
--- a/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/key_derivation.dart
+++ b/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/key_derivation.dart
@@ -3,7 +3,7 @@ import 'package:catalyst_voices_models/catalyst_voices_models.dart';
 import 'package:ed25519_hd_key/ed25519_hd_key.dart';
 
 /// Derives key pairs from a seed phrase.
-class KeyDerivation {
+final class KeyDerivation {
   /// Derives an [Ed25519KeyPair] from a [seedPhrase] and [path].
   ///
   /// Example [path]: m/0'/2147483647'
diff --git a/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/keychain.dart b/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/keychain.dart
index 2d10047112..33ea17b5b1 100644
--- a/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/keychain.dart
+++ b/catalyst_voices/packages/catalyst_voices_services/lib/src/keychain/keychain.dart
@@ -13,7 +13,7 @@ const _seedPhraseKey = 'keychain_seed_phrase';
 // TODO(dtscalac): in the future when key derivation algorithm spec
 // will become stable consider to store derived keys instead of deriving
 // them each time they are needed.
-class Keychain {
+final class Keychain {
   final _logger = Logger('Keychain');
 
   final KeyDerivation _keyDerivation;
@@ -60,9 +60,9 @@ class Keychain {
   ///
   /// In most cases the [unlock] is going to be
   /// an instance of a [PasswordLockFactor].
-  Future<void> unlock(LockFactor unlock) async {
+  Future<bool> unlock(LockFactor unlock) async {
     _logger.info('unlock');
-    await _vault.unlock(unlock);
+    return _vault.unlock(unlock);
   }
 
   /// Locks the keychain.
diff --git a/catalyst_voices/packages/catalyst_voices_services/lib/src/registration/registration_transaction_builder.dart b/catalyst_voices/packages/catalyst_voices_services/lib/src/registration/registration_transaction_builder.dart
index b517132f70..63850d0bcd 100644
--- a/catalyst_voices/packages/catalyst_voices_services/lib/src/registration/registration_transaction_builder.dart
+++ b/catalyst_voices/packages/catalyst_voices_services/lib/src/registration/registration_transaction_builder.dart
@@ -8,7 +8,7 @@ typedef RegistrationMetadata = X509MetadataEnvelope<RegistrationData>;
 
 /// A builder that builds a Catalyst user registration transaction
 /// using RBAC specification.
-class RegistrationTransactionBuilder {
+final class RegistrationTransactionBuilder {
   /// The RBAC registration purpose for the Catalyst Project.
   static const _catalystUserRoleRegistrationPurpose =
       'ca7a1457-ef9f-4c7f-9c74-7f8c4a4cfa6c';
diff --git a/catalyst_voices/packages/catalyst_voices_view_models/lib/src/authentication/authentication.dart b/catalyst_voices/packages/catalyst_voices_view_models/lib/src/authentication/authentication.dart
index 6206c2555d..6ac95a1ea3 100644
--- a/catalyst_voices/packages/catalyst_voices_view_models/lib/src/authentication/authentication.dart
+++ b/catalyst_voices/packages/catalyst_voices_view_models/lib/src/authentication/authentication.dart
@@ -1,3 +1,4 @@
 export 'email.dart';
+export 'exception/localized_unlock_password_exception.dart';
 export 'password.dart';
 export 'unlock_password.dart';
diff --git a/catalyst_voices/packages/catalyst_voices_view_models/lib/src/authentication/exception/localized_unlock_password_exception.dart b/catalyst_voices/packages/catalyst_voices_view_models/lib/src/authentication/exception/localized_unlock_password_exception.dart
new file mode 100644
index 0000000000..bf86cdecdc
--- /dev/null
+++ b/catalyst_voices/packages/catalyst_voices_view_models/lib/src/authentication/exception/localized_unlock_password_exception.dart
@@ -0,0 +1,12 @@
+import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
+import 'package:catalyst_voices_view_models/src/exception/localized_exception.dart';
+import 'package:flutter/widgets.dart';
+
+/// An incorrect password was used to unlock the keychain.
+final class LocalizedUnlockPasswordException extends LocalizedException {
+  const LocalizedUnlockPasswordException();
+
+  @override
+  String message(BuildContext context) =>
+      context.l10n.unlockDialogIncorrectPassword;
+}
diff --git a/catalyst_voices/uikit_example/lib/examples/voices_snackbar_example.dart b/catalyst_voices/uikit_example/lib/examples/voices_snackbar_example.dart
index bcc457d83b..79cf16e14e 100644
--- a/catalyst_voices/uikit_example/lib/examples/voices_snackbar_example.dart
+++ b/catalyst_voices/uikit_example/lib/examples/voices_snackbar_example.dart
@@ -1,5 +1,7 @@
 import 'package:catalyst_voices/widgets/snackbar/voices_snackbar.dart';
+import 'package:catalyst_voices/widgets/snackbar/voices_snackbar_action.dart';
 import 'package:catalyst_voices/widgets/snackbar/voices_snackbar_type.dart';
+import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
 import 'package:flutter/material.dart';
 
 class VoicesSnackbarExample extends StatelessWidget {
@@ -9,7 +11,19 @@ class VoicesSnackbarExample extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final screenWidth = MediaQuery.sizeOf(context).width;
+    final actionsList = [
+      [
+        VoicesSnackBarPrimaryAction(
+          onPressed: () {},
+          child: Text(context.l10n.snackbarRefreshButtonText),
+        ),
+        VoicesSnackBarSecondaryAction(
+          onPressed: () {},
+          child: Text(context.l10n.learnMore),
+        ),
+      ],
+      <Widget>[],
+    ];
 
     return Scaffold(
       appBar: AppBar(title: const Text('Voices Snackbar')),
@@ -20,27 +34,27 @@ class VoicesSnackbarExample extends StatelessWidget {
           runSpacing: 16,
           children: [
             for (final type in VoicesSnackBarType.values)
-              OutlinedButton(
-                onPressed: () {
-                  VoicesSnackBar(
-                    type: type,
-                    padding: EdgeInsets.only(
-                      bottom: screenWidth / 2,
-                      left: screenWidth / 3,
-                      right: screenWidth / 3,
+              for (final actions in actionsList)
+                for (final behavior in SnackBarBehavior.values)
+                  OutlinedButton(
+                    onPressed: () {
+                      VoicesSnackBar(
+                        type: type,
+                        behavior: behavior,
+                        onClosePressed: () =>
+                            VoicesSnackBar.hideCurrent(context),
+                        actions: actions,
+                      ).show(context);
+                    },
+                    child: Text(
+                      '${behavior.toString().split('.').last}'
+                      ' ${type.toString().split('.').last}'
+                      '${actions.isEmpty ? '' : ' with actions'}',
+                      style: TextStyle(
+                        color: Theme.of(context).colorScheme.onSurface,
+                      ),
                     ),
-                    onPrimaryPressed: () {},
-                    onSecondaryPressed: () {},
-                    onClosePressed: () => VoicesSnackBar.hideCurrent(context),
-                  ).show(context);
-                },
-                child: Text(
-                  type.toString().split('.').last,
-                  style: TextStyle(
-                    color: Theme.of(context).colorScheme.onSurface,
                   ),
-                ),
-              ),
           ],
         ),
       ),