"Due to its roots in public key cryptography (see ZDNET's primer on the role of public key cryptography in making passkeys work), the passkey standard makes it possible to login to a website or app (collectively referred to as the "relying party") without the need to input your secret (your password) in order to complete the login process. In fact, the passkey standard enables relying parties to eliminate passwords altogether."
"Coming soon to a website or application near you (if it hasn't already) will be the opportunity to login with a passwordless passkey instead of the typical user ID and password. The three big ideas behind passkeys are: They cannot be guessed (the way passwords can -- and often are). The same passkey cannot be reused across different websites and apps (the way passwords can). You cannot be tricked into divulging your passkeys to malicious actors (the way passwords can)."
Passkeys replace passwords by using public-key cryptography to enable passwordless logins without entering a secret and to eliminate passwords. They cannot be guessed, cannot be reused across different websites and apps, and cannot be disclosed to attackers through phishing. There are three types of authenticators: platform, virtual, and roaming. Apple and Microsoft, and to some extent Google, are the main providers of platform authenticators. Human behavior remains a major risk: 98% of users still clicked scam emails despite comprehensive cybersecurity training. Relying parties must offer passkey options and users must learn how to use them.
Read at ZDNET
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