If your level of anxiety over online security and privacy is on the healthy side, you probably already have two-factor authentication (2FA) set up for your main accounts. If you don’t, you ...

Forget passwords. If you want strong online security, you need to be using multi-factor authentication wherever you can. Here's how to get started.

If you use Google services, and you don't want anyone raiding or wrecking your account and services--not to mention your life--Google two-step verification security is for you.

Twitter Twitter has named its two-factor authentication system “Login Verification,” and its announcement provides a straightforward guide on how and why to use it.