Security officials describe a passkey as a “digital stamp” that allows you to sign in to apps and websites and is stored on your device.
It is a password-free form of login. Unlike a password, it cannot be stolen in a phishing attack, where people are fooled into handing over their credentials, which can later appear on the dark web.
It just requires your smartphone or device to confirm that it is you trying to log in, by using biometric methods such as facial recognition or your phone’s pin. That triggers the “stamp” – or secure passkey – which confirms to the app or website that you are who you say you are. Each account you are registered with will have a different passkey.
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