AC.L2-3.1.8 Unsuccessful Logon Attempts

Limit unsuccessful logon attempts.

Source: NIST SP 800-171 Rev 2 3.1.8

Discussion: This requirement applies regardless of whether the logon occurs via a local or network connection. Due to the potential for denial of service, automatic lockouts initiated by systems are, in most cases, temporary and automatically release after a predetermined period established by the organization (i.e., a delay algorithm). If a delay algorithm is selected, organizations may employ different algorithms for different system components based on the capabilities of the respective components. Responses to unsuccessful logon attempts may be implemented at the operating system and application levels.

SPRS Score: 1