Passwords are increasingly easy to compromise. They can often be stolen, guessed, or hacked — you might not even know someone is accessing your account.Two-factor authentication
adds a second layer of security to your online accounts. Verifying your identity using a second factor (like your phone or other mobile device) prevents anyone but you from logging in, even if they know your password.
This second factor of authentication is separate and independent from your username and password — Duo never sees your password.
Referred to as two-step or two-factor authentication, this process, which uses Duo Security
, asks individuals logging in to confirm their identity using a smartphone, via text, or via automated voice calls.