The phone in your hand.
When you reach for a sealed detail, your device proves it’s yours the same way it unlocks your banking app: your face, your fingerprint, the passcode it already trusts. From that, the envelope opens.
The proof never leaves the device. We see only that the door was opened, not the key that opened it.
Used whenever you reach for a sealed detail. Quiet, one-tap, never types a password.