Backup codes: Most authenticator apps provide backup codes that you can use if you lose your phone or can’t access your authenticator app for any reason. Make sure to save these codes in a safe ...

Google Authenticator is a free security app that can protect your accounts against password theft. It's easy to set up and can be used in a process called two-factor authentication (2FA) offered on ...

Multi-factor authentication (MFA) adds an extra layer of protection to your accounts. Instead of relying only on a password, MFA requires you to verify your identity using two or more methods.