ACCOUNT SECURITY
Passkeys Explained: Safer Sign-In Without Passwords
Understand what a passkey is, where it is stored and how to adopt it without locking yourself out.
What a passkey replaces
A passkey lets you sign in with the same face scan, fingerprint or device PIN used to unlock your phone or computer. The website receives proof that the correct credential was used, not your biometric data. Each passkey is tied to the account and website for which it was created, so a convincing copy of a login page cannot use it for the genuine site. This makes passkeys much more resistant to phishing than passwords and one-time codes.
Where your passkey lives
Depending on your device, passkeys can be saved in a password manager and securely synchronized across devices signed in to the same platform account. Some services also let you use a nearby phone to approve a sign-in on another device. Create passkeys only on devices you personally own and regularly use. A passkey created on a shared computer may remain available to other people who can unlock that computer.
A safe setup checklist
- Update the device and browser before setup.
- Confirm that your Apple, Google or password-manager account has strong recovery options.
- Open the service through its official app or type its known address yourself.
- Find Security or Sign-in settings and choose Create passkey.
- Name the passkey clearly when the service offers that option.
- Test it in a private browser window before removing any older sign-in method.
Keep a recovery route
A passkey does not remove the need for account recovery. Keep recovery codes offline, verify your recovery email and understand how to regain access to the platform account that synchronizes your passkeys. Do not delete every older sign-in method on the first day. After testing the new passkey on a second trusted device, remove only methods you no longer need.
If a passkey prompt is unexpected
Cancel a prompt you did not start. Open the account from a saved bookmark or official app and review recent sessions, devices and security alerts. A passkey cannot be handed over like an OTP, but an attacker may still try to persuade you to approve a sign-in or share your screen. Device-unlock prompts should be treated as account approvals: read what started the request before confirming.