Setting up Facebook authentication can be a bit of a pain, but this step-by-step, screenshot-by-screenshot article by our own David Gewirtz should make it easy.

Make sign in quick and easy, by using Firebase Authentication to allow users to log into your app with their existing Facebook or Twitter account.

Two-factor authentication is critical to securing your online accounts, and Duo Mobile offers the best combination of security, accessibility, and ease of use.

Whether you're getting extra social or enjoying Facebook Gaming, it's a good idea to protect your account with two-factor authentication.

Facebook is sending its two-factor authentication users text messages they don’t want. This situation provides yet another reason why you should use a dedicated app for generating two-factor ...

The update, now available to most users, comes several months after Facebook was criticized for spamming users' two-factor authentication phone numbers.

Looking for a free two-factor authentication app that works across platforms? Proton Authenticator offers broad import capabilities, iCloud sync, and thoughtful security features from a company you ...

Proton has a free authenticator app, which is available cross-platform with end-to-end encryption protection for data.