[ GLOSSARY DEFINITION ] Software

2FA

Two-factor authentication adds a second proof of identity beyond a password.

Also known as: two-factor authentication

Full Definition & Technical Explanation

2FA (two-factor authentication) requires a second factor beyond a password, such as a code or biometric, making account takeover much harder.

See passkey and biometrics.

Frequently Asked Questions

What is 2FA?

Two-factor authentication adds a second proof of identity beyond a password.

What terms are related to 2FA?

Related Software terms include picture in picture, biometrics.

Related Technical Terms

picture in picture
A small floating video window that keeps playing while you use other apps. Software
biometrics
Using physical traits such as faces or fingerprints to authenticate. Software
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