Which of the following authentication methods are NOT used for Mobile Access?

Mobile Access in the context of Check Point typically uses several authentication methods to verify user identity and ensure secure access. While RADIUS, username and password (whether internal or directory-based), and SecurID are all methods that can be implemented for authentication in Mobile Access scenarios, TACACS+ is generally not utilized for this purpose.

RADIUS servers are commonly used for remote authentication and are well-supported in various mobile access scenarios, enabling organizations to manage access efficiently. Username and password authentication methods, whether internal to Check Point or integrated through LDAP, are straightforward options to verify user credentials. SecurID adds an extra layer of security through two-factor authentication, making it a relevant choice for Mobile Access.

In contrast, TACACS+ (Terminal Access Controller Access-Control System Plus) is primarily a protocol used for network device administration and access control. While effective within specific contexts, TACACS+ is not typically associated with Mobile Access implementations. Thus, it is the choice that does not align with the common authentication methods utilized in the Mobile Access framework, reinforcing its designation as the correct answer to the question.