Multi-factor authentication (MFA) is designed to protect access to data and applications. MFA will improve your organization’s security by requiring your users to identify themselves with more than user credentials. It offers additional security by requiring a second method of authentication and offers high-level authentication. While important, user credentials are vulnerable to brute force attacks and can be stolen by attackers. Enforcing the use of an MFA factor like a TOTP, fingerprint, or physical hardware key will ensure your organization from cyberattacks.

We have integrated Google two-factor authentication in ssh. A user installs the Google  Authenticator app on a smartphone.  The app displays an additional six-digit one-time password. The user enters it, thus authenticating the user’s identity.