passwordless

2. Relating to authentication that uses something other than a password, such as a fingerprint or a code sent to a phone.

The app switched to passwordless login to reduce phishing risks.

3. Describing a system or account that does not rely on traditional passwords for access.

Their passwordless account uses a security key instead.

4. In computing, referring to access methods based on cryptographic keys or one-time links rather than memorized secrets.

Passwordless sign-in links are emailed to the user.