Duo Security

DUO Security

Duo is a two-factor authentication solution that helps organizations improve their security by verifying user identity and providing a safe access to company networks and applications.
Duo Security works by requiring you to provide two pieces of information – usually a password and a verification code – before you can log in to your accounts. To verify your identity, it usually asks you to either use an automated voice call or send a verification code to your phone via SMS.