Compare the top 5 multi-factor authentication software in 2026. Find the best customer MFA solution for your apps with our detailed platform review.

First, turn on two-factor authentication for the account. You'll get a QR code or setup key. Next, open the Google Authenticator app and tap the plus sign. Record the 2FA code/key. Whenever you're ...

I have long encouraged the use of two-factor authentication (2FA) or two-step verification (2SV) with online accounts whenever possible (for more about the difference, see “Two-Factor Authentication, ...

Raise your hand if you’ve avoided enabling two-factor authentication for websites that offer it because it’s too much of a hassle to launch an app, find the appropriate site entry, copy a six-digit ...

A comprehensive developer guide to implementing secure authentication in modern applications. Covers OAuth 2.0, OIDC, ...