Biometric Lock
Bank-style app lock backed by your device’s biometrics — Face ID, fingerprint, or Windows Hello (WebAuthn platform authenticator).
Enable
Settings → Biometric / Face ID → Enable → your device prompts for biometrics → the lock is armed.
What it gates
| Moment | Behaviour |
|---|---|
| Opening the app (every page load / refresh) | Full-screen Vault locked — unlock with your face |
| First entry to the Private Vault per session | Verify again (cancellable) |
| Export private key | Verify before the key is shown |
| Disabling the lock | Verify — nobody can switch it off silently |
What it is (and isn’t)
- The lock protects the app UI on your device — someone holding your unlocked phone still can’t open the vault, see private balances, or export the key.
- Sign-in stays Google/email, so switching accounts is unaffected.
- Custody itself is held by your wallet session and passkeys; the lock is an extra gate in front of it, not a replacement.
Disable any time from the same Settings row (biometric check required).