Why a recovery phrase instead of a username and password?

It can feel backwards at first, but a single recovery phrase is the stronger construction. With a username and password, the username is not a secret (it shows up in every breach dump), so all the security rests on the password, and human-chosen passwords average maybe 30 to 40 bits of entropy. Your 12-word phrase is a guaranteed 128 bits, generated by your device, never chosen by a human, and never reused from another site.

There is also nothing for us to lose. A password login means the server stores at least a password hash, which can be leaked, cracked, or phished. Your phrase never leaves your device: it derives your encryption keys locally, and the server only ever sees encrypted data. There is no hash to steal and no password reset flow for an attacker to abuse.

If typing 12 words feels clunky: you can save the phrase to your password manager with one tap (Settings > Security > Your Phrase), and signing in feels like any other login. Prefer a familiar flow? Sign in with Google or Apple works too, and you still get a phrase under the hood.