Passkeys replace remember this password with a cryptographic key on your device, unlocked by Face ID, a fingerprint, or a local PIN. The promise is simple: phishing-resistant logins without 123456 and without another password manager panic.
How passkeys work in practice
When you register, the site stores a public key. Your device keeps the private key and only signs in after you unlock the device. A fake login page cannot harvest a password you never typed. Sync via Apple, Google, or a password manager can move passkeys across your devices, which is convenient and also the new trust boundary to understand.
Are they really safer than passwords?
Against phishing and reused passwords, yes for most people. They do not remove device theft risk, weak phone PINs, or account recovery chaos. Shared family computers and older sites without passkey support still need a fallback plan.
How to switch without locking yourself out
- Turn on passkeys for your email and bank first
- Keep a password manager as backup while coverage is uneven
- Register more than one device where the service allows it
- Write down recovery options before you delete old passwords
Passkeys will not erase every login headache overnight. They do end the worst everyday failure mode: typing secrets into lookalike sites. That alone is worth starting the migration.
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