Opinion: Think of your account password and the verification code as working together, similar to a doorknob lock and a deadbolt.

This article explains two-factor authentication and how to get verification apps and codes.

Google is changing the way you confirm if contacts are legit. The company has begun rolling out a QR code to verify that the person you're communicating with is, in fact, who they say they are, ...

Vietnamese messaging platform Zalo is now requiring users to send paid text messages to receive verification codes, instead of automatically generating them, citing system congestion.

If you give anyone your verification code, they can log in and transfer all the money out of your accounts. Tips for how to stop the scammers Never, ever give your verification code to someone else.