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Passwords are broken. You know this. Do you know why?
The old model is simple:
- You create a password.
- The server stores a hash.
- You send it every login.
- The server compares it.
Sending the password is the risk. Phishing steals it. Breaches expose hashes. People reuse passwords across sites. Most tips only hide the problem. They do not fix it.
Passkeys change the model. They use FIDO2 and WebAuthn. This system uses asymmetric cryptography.
The WebAuthn API makes this simple for you to build.