diff --git a/e2e/specs/backup-security.spec.ts b/e2e/specs/backup-security.spec.ts
index 1966a71..6aed51e 100644
--- a/e2e/specs/backup-security.spec.ts
+++ b/e2e/specs/backup-security.spec.ts
@@ -79,6 +79,97 @@ test.describe('Security page', () => {
     // auto-lock: display-only for now
     await expect(page.getByText('Locks after 5 minutes without activity')).toBeVisible();
   });
+
+  test('lists only passkeys owned by the current wallet', async ({ page }) => {
+    // Given a browser with a PRF-capable authenticator probe and an unlocked wallet
+    await page.addInitScript(() => {
+      Object.defineProperty(window, 'PublicKeyCredential', {
+        configurable: true,
+        value: {
+          isUserVerifyingPlatformAuthenticatorAvailable: () => Promise.resolve(true),
+          getClientCapabilities: () => Promise.resolve({ 'extension:prf': true }),
+        },
+      });
+    });
+    await createFreshWallet(page);
+    await page.evaluate(() => {
+      const saved: unknown = JSON.parse(localStorage.getItem('sattle_linking_key') ?? '{}');
+      if (
+        typeof saved !== 'object' ||
+        saved === null ||
+        !('ownerId' in saved) ||
+        typeof saved.ownerId !== 'string'
+      ) {
+        throw new Error('expected saved wallet owner');
+      }
+      const wrap = {
+        hkdfSalt: '11'.repeat(16),
+        iv: '22'.repeat(12),
+        wrappedKey: '33'.repeat(48),
+        createdAt: 1,
+      };
+      localStorage.setItem(
+        'sattle_passkey_slots',
+        JSON.stringify([
+          {
+            ...wrap,
+            credentialId: '44'.repeat(16),
+            name: 'Current wallet passkey',
+            ownerId: saved.ownerId,
+            version: 1,
+          },
+          {
+            ...wrap,
+            credentialId: '55'.repeat(16),
+            name: 'Foreign wallet passkey',
+            ownerId: '0256b328b30c8bf5839e24058747879408bdb36241dc9c2e7c619faa12b2920967',
+            version: 1,
+          },
+        ]),
+      );
+    });
+
+    // When the security management surface reads passkey slots
+    await page.goto('/#/settings/security');
+
+    // Then only the current owner's slot is rendered
+    await expect(page.getByText('Current wallet passkey')).toBeVisible();
+    await expect(page.getByText('Foreign wallet passkey')).toHaveCount(0);
+  });
+
+  test('hides passkey-first unlock for a markerless saved wallet', async ({ page }) => {
+    // Given an encrypted saved key and passkey slot without owner markers
+    await page.addInitScript(() => {
+      localStorage.setItem(
+        'sattle_linking_key',
+        JSON.stringify({
+          enc: true,
+          salt: '11'.repeat(16),
+          iv: '22'.repeat(12),
+          ciphertext: '33'.repeat(48),
+        }),
+      );
+      localStorage.setItem(
+        'sattle_passkey_slots',
+        JSON.stringify([
+          {
+            credentialId: '44'.repeat(16),
+            hkdfSalt: '55'.repeat(16),
+            iv: '66'.repeat(12),
+            wrappedKey: '77'.repeat(48),
+            createdAt: 1,
+          },
+        ]),
+      );
+    });
+
+    // When the locked wallet renders
+    await page.goto('/');
+
+    // Then passkey-first unlock is unavailable until another owner proof
+    await expect(page.getByText('Wallet locked')).toBeVisible();
+    await expect(page.getByRole('button', { name: 'Unlock with passkey' })).toHaveCount(0);
+  });
 });
 
 test.describe('Welcome: restore from nostr', () => {
diff --git a/e2e/specs/wallet-lifecycle.spec.ts b/e2e/specs/wallet-lifecycle.spec.ts
new file mode 100644
index 0000000..217ee15
--- /dev/null
+++ b/e2e/specs/wallet-lifecycle.spec.ts
@@ -0,0 +1,242 @@
+import { bytesToHex } from '@noble/hashes/utils.js';
+import { secp256k1 } from '@noble/curves/secp256k1.js';
+
+import { test, expect } from '../fixtures';
+
+// Wallet lifecycle in the real browser: a LEGACY (ownerless) encrypted wallet
+// with ownerless passkey/NWC/trust residue must migrate to the proven owner
+// during password unlock - before the NWC service may start - and forgetting
+// the wallet must drain/stop that service and remove every wallet-owned key
+// before a successor wallet can be created without any of the old residue.
+//
+// The legacy encrypted record is produced here with the exact same KDF/wrap
+// the app uses (keys.ts: PBKDF2-SHA256 210k -> AES-GCM), just without the
+// owner marker a current build would stamp.
+
+declare global {
+  interface Window {
+    __sattleWalletTest: { state: () => string; forget: () => Promise<void> };
+  }
+}
+
+const PASSWORD = 'correct horse battery staple';
+const LINKING_KEY_HEX = '07'.repeat(32);
+const OWNER_ID = bytesToHex(secp256k1.getPublicKey(hexToBytesLocal(LINKING_KEY_HEX), true));
+const MINT_PUBKEY = '02' + 'aa'.repeat(32);
+
+function hexToBytesLocal(hex: string): Uint8Array {
+  const bytes = new Uint8Array(hex.length / 2);
+  for (let i = 0; i < bytes.length; i += 1) {
+    bytes[i] = parseInt(hex.slice(i * 2, i * 2 + 2), 16);
+  }
+  return bytes;
+}
+
+const PBKDF2_ITERATIONS = 210_000;
+
+const legacyEncryptedRecord = async (
+  valueHex: string,
+  password: string,
+): Promise<{ salt: string; iv: string; ciphertext: string }> => {
+  const salt = crypto.getRandomValues(new Uint8Array(16));
+  const iv = crypto.getRandomValues(new Uint8Array(12));
+  const baseKey = await crypto.subtle.importKey(
+    'raw',
+    new TextEncoder().encode(password),
+    'PBKDF2',
+    false,
+    ['deriveKey'],
+  );
+  const aesKey = await crypto.subtle.deriveKey(
+    { name: 'PBKDF2', salt, iterations: PBKDF2_ITERATIONS, hash: 'SHA-256' },
+    baseKey,
+    { name: 'AES-GCM', length: 256 },
+    false,
+    ['encrypt'],
+  );
+  const ciphertext = new Uint8Array(
+    await crypto.subtle.encrypt(
+      { name: 'AES-GCM', iv },
+      aesKey,
+      new TextEncoder().encode(valueHex),
+    ),
+  );
+  return { salt: bytesToHex(salt), iv: bytesToHex(iv), ciphertext: bytesToHex(ciphertext) };
+};
+
+const WALLET_KEYS = [
+  'sattle_linking_key',
+  'sattle_bearers',
+  'sattle_activity',
+  'sattle_settings',
+  'sattle_passkey_slots',
+  'sattle_nwc_connections',
+  'sattle_nwc_enabled',
+  'sattle_trusted_mints',
+  'sattle_biometric_wrap',
+] as const;
+
+test.describe('wallet lifecycle', () => {
+  test('legacy unlock migrates, forget wipes the owner, successor starts clean', async ({
+    page,
+  }) => {
+    // Given a legacy encrypted wallet (no owner marker) plus ownerless residue
+    const record = await legacyEncryptedRecord(LINKING_KEY_HEX, PASSWORD);
+    await page.addInitScript(
+      ({ storedRecord, mintPubkey }) => {
+        localStorage.setItem('sattle_linking_key', JSON.stringify({ enc: true, ...storedRecord }));
+        localStorage.setItem(
+          'sattle_passkey_slots',
+          JSON.stringify([
+            {
+              credentialId: '11'.repeat(16),
+              hkdfSalt: '22'.repeat(16),
+              iv: '33'.repeat(12),
+              wrappedKey: '44'.repeat(48),
+              createdAt: 1,
+            },
+          ]),
+        );
+        localStorage.setItem(
+          'sattle_nwc_connections',
+          JSON.stringify([
+            {
+              clientPubkey: '55'.repeat(32),
+              relays: ['wss://relay.example'],
+              budget: { maxMsat: 1000, periodMs: 60_000 },
+              spent: { periodStart: 0, msat: 0 },
+              createdAt: 1,
+            },
+          ]),
+        );
+        localStorage.setItem('sattle_nwc_enabled', 'true');
+        localStorage.setItem(
+          'sattle_trusted_mints',
+          JSON.stringify([{ server: 'legacy.example', mintPubkey, addedAt: 1, locked: false }]),
+        );
+      },
+      { storedRecord: record, mintPubkey: MINT_PUBKEY },
+    );
+
+    await page.goto('/#/');
+
+    // the unlock screen proves the app boot finished and the dev hooks exist
+    await expect(page.getByText('Wallet locked')).toBeVisible();
+    await expect
+      .poll(async () => page.evaluate(() => typeof window.__sattleNwcTest))
+      .toBe('object');
+
+    // no real relay traffic once the migrated enabled state starts the service
+    await page.evaluate(() => {
+      window.__nwcSubs = [];
+      window.__sattleNwcTest.setTransport({
+        publish: () => Promise.resolve(),
+        subscribe: () => {
+          const sub = {
+            closed: false,
+            close() {
+              this.closed = true;
+            },
+          };
+          window.__nwcSubs.push(sub);
+          return sub;
+        },
+      });
+    });
+
+    // When the holder proves the wallet by password
+    await page.locator('.unlock-card input').fill(PASSWORD);
+    await page.getByRole('button', { name: 'Unlock', exact: true }).click();
+
+    // Then the wallet unlocks...
+    await expect(page.getByRole('button', { name: 'Receive' })).toBeVisible();
+
+    // ...and every legacy namespace was migrated to the proven owner BEFORE
+    // the NWC service could start (the subscriptions below only exist because
+    // the migrated owner-scoped enabled record read true)
+    const migrated = await page.evaluate(() => {
+      const field = (storageKey: string, name: string): unknown => {
+        const value: unknown = JSON.parse(localStorage.getItem(storageKey) ?? 'null');
+        return typeof value === 'object' && value !== null
+          ? Object.entries(value).find(([key]) => key === name)?.[1]
+          : undefined;
+      };
+      const fields = (storageKey: string, name: string): unknown[] => {
+        const value: unknown = JSON.parse(localStorage.getItem(storageKey) ?? '[]');
+        if (!Array.isArray(value)) return [];
+        return value.map((entry: unknown) =>
+          typeof entry === 'object' && entry !== null
+            ? Object.entries(entry).find(([key]) => key === name)?.[1]
+            : undefined,
+        );
+      };
+      const mints: unknown = field('sattle_trusted_mints', 'mints');
+      return {
+        savedKeyOwner: field('sattle_linking_key', 'ownerId'),
+        passkeyOwners: fields('sattle_passkey_slots', 'ownerId'),
+        nwcEnabledOwner: field('sattle_nwc_enabled', 'ownerId'),
+        nwcEnabled: field('sattle_nwc_enabled', 'enabled'),
+        nwcConnectionOwners: fields('sattle_nwc_connections', 'ownerId'),
+        trustedMintsOwner: field('sattle_trusted_mints', 'ownerId'),
+        trustedMintServers: Array.isArray(mints)
+          ? mints.map((mint: unknown) =>
+              typeof mint === 'object' && mint !== null && 'server' in mint
+                ? mint.server
+                : undefined,
+            )
+          : [],
+      };
+    });
+    expect(migrated.savedKeyOwner).toBe(OWNER_ID);
+    expect(migrated.passkeyOwners).toEqual([OWNER_ID]);
+    expect({ ownerId: migrated.nwcEnabledOwner, enabled: migrated.nwcEnabled }).toEqual({
+      ownerId: OWNER_ID,
+      enabled: true,
+    });
+    expect(migrated.nwcConnectionOwners).toEqual([OWNER_ID]);
+    expect(migrated.trustedMintsOwner).toBe(OWNER_ID);
+    expect(migrated.trustedMintServers).toEqual(['legacy.example']);
+    await expect.poll(async () => page.evaluate(() => window.__nwcSubs.length)).toBeGreaterThan(0);
+
+    // When the wallet is forgotten
+    await page.evaluate(() => window.__sattleWalletTest.forget());
+
+    // Then the app lands on the no-wallet screen, the service is drained
+    // (every subscription closed), and no wallet-owned key remains
+    await expect(page.getByRole('button', { name: 'Get started' })).toBeVisible();
+    await expect
+      .poll(async () => page.evaluate(() => window.__nwcSubs.every((sub) => sub.closed)))
+      .toBe(true);
+    const remaining = await page.evaluate(
+      (keys) => keys.filter((key) => localStorage.getItem(key) !== null),
+      [...WALLET_KEYS],
+    );
+    expect(remaining).toEqual([]);
+
+    // When a successor wallet is created
+    await page.getByRole('button', { name: 'Get started' }).click();
+    await page.getByRole('button', { name: 'Create wallet' }).click();
+    await page.locator('.q-checkbox', { hasText: 'I wrote it down' }).click();
+    await page.getByRole('button', { name: 'Continue' }).click();
+    await expect(page.getByRole('button', { name: 'Receive' })).toBeVisible();
+
+    // Then it is a different owner with zero adopted residue
+    const successor = await page.evaluate(() => {
+      const saved: unknown = JSON.parse(localStorage.getItem('sattle_linking_key') ?? 'null');
+      return {
+        ownerId:
+          typeof saved === 'object' && saved !== null && 'ownerId' in saved
+            ? saved.ownerId
+            : undefined,
+        residueKeys: [
+          'sattle_passkey_slots',
+          'sattle_nwc_connections',
+          'sattle_nwc_enabled',
+          'sattle_trusted_mints',
+        ].filter((key) => localStorage.getItem(key) !== null),
+      };
+    });
+    expect(successor.ownerId).not.toBe(OWNER_ID);
+    expect(successor.residueKeys).toEqual([]);
+  });
+});
diff --git a/src/boot/wallet.ts b/src/boot/wallet.ts
index 84b4476..88f9f58 100644
--- a/src/boot/wallet.ts
+++ b/src/boot/wallet.ts
@@ -3,6 +3,15 @@ import { useWalletStore } from '@/stores/wallet';
 import { useNostrBackupStore } from '@/stores/nostrBackup';
 import { useNwcStore } from '@/stores/nwc';
 
+declare global {
+  interface Window {
+    __sattleWalletTest?: {
+      readonly state: () => ReturnType<typeof useWalletStore>['state'];
+      readonly forget: () => Promise<void>;
+    };
+  }
+}
+
 // Wallet lifecycle bootstrap: reflects whatever is on this device into the
 // wallet store at app start - a plaintext-stored key unlocks straight away,
 // a password-encrypted one lands on 'locked' for the unlock screen, and no
@@ -17,3 +26,12 @@ export default defineBoot(async () => {
   // client requests; on lock it stops and drops the key-material closure
   useNwcStore();
 });
+
+// dev-only e2e hook: lets a spec observe the wallet state and drive the
+// forget transition, which has no UI surface. Never in production builds.
+if (import.meta.env.DEV && typeof window !== 'undefined') {
+  window.__sattleWalletTest = {
+    state: () => useWalletStore().state,
+    forget: () => useWalletStore().forgetWallet(),
+  };
+}
diff --git a/src/pages/BackupPage.vue b/src/pages/BackupPage.vue
index 2a27217..bcf5d91 100644
--- a/src/pages/BackupPage.vue
+++ b/src/pages/BackupPage.vue
@@ -172,7 +172,7 @@ const errorMessage = (err: unknown): string =>
 
 // ---- backup file ----
 const downloadBackupFile = () => {
-  const backup = buildBackup();
+  const backup = buildBackup(wallet.pubkey ?? undefined);
   const blob = new Blob([JSON.stringify(backup, null, 2)], {
     type: 'application/json',
   });