What is the unique two-factor authentication method available for PSMP?

The unique two-factor authentication method available for the Privileged Session Manager for PAM (PSMP) is RADIUS. RADIUS, which stands for Remote Authentication Dial-In User Service, enhances security by requiring two factors for authentication: something the user knows (like a password) and something the user possesses (such as a security token or mobile device).

In the context of CyberArk's solutions, RADIUS is vital for supporting secure access to privileged sessions managed by PSMP. It integrates with existing infrastructure and can manage authentication for users, making the process secure and scalable.

Utilizing RADIUS for two-factor authentication adds an additional layer of security, especially crucial in environments where sensitive operations are performed by privileged accounts. This ensures that unauthorized access is minimized and that only validated users can initiate sessions through PSMP.

The other methods mentioned, such as RSA SecurID, PKI, and Windows authentication, while they may also support security, are not uniquely designated as the two-factor authentication method specifically for PSMP. Each of these may serve different purposes or operate in different contexts within CyberArk's architecture but do not exclusively define the unique two-factor authentication mechanism as RADIUS does.