Tech Terms Explained Simply

A beginner-friendly glossary built by the community, for the community

60 Terms - 16 Categories

Community Verified

100% Free and Open Source

Two-Factor Authentication (2FA)

security

Copy embedding code

Share on Bluesky

Share on X

Copy to clipboard

Create image

2FA is an extra layer of security. Besides your password, you also need to prove it's really you — like by entering a code sent to your phone. So even if someone steals your password, they can't log in easily.