![]() ![]() For multiple accounts on a single website, you can have multiple passkeys for that website. You can create many passkeys: each passkey unlocks a single account on a single website. ![]() For all this to work, there needs to be passkey support in the website, your browser, your password manager, and usually also your operating system. When you go to a website’s login page, you’ll have the option to “Sign in with a passkey.” If you choose that option you’ll get a confirmation prompt from your password manager, and will be logged in after confirming. From then on, you can use that passkey to log in to that website without entering a password. Once the passkey is generated, your browser registers it with the website and it gets stored somewhere safe (for instance, your password manager ). Ī passkey is approximately 100-1400 bytes of random data, generated on your device (like your phone, laptop, or security key) for the purpose of logging in on a specific website. A passkey is also not something you can type in it’s not a password, passcode, passphrase, or a PIN. A passkey is in some sense one of two (or three) different things, depending on how it’s stored.įirst off: is a passkey one of those little plastic things you stick in your USB port for two-factor authentication? No, that’s a security key. But lots of smart and security-oriented folks are confused about what exactly a passkey is. The passkey promises to solve phishing and prevent password reuse. Part 2, on privacy, is here.Ī new login technique is becoming available in 2023: the passkey. This is part 1 of our series on passkeys.
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