id: "AC-09" title: "Previous Logon Notification" family: "AC" family_name: "Access Control" sort_id: "ac-09" priority: "P1" implementation_level: "system" enhancements: - ac-9.1 - ac-9.2 - ac-9.3 - ac-9.4
Statement
Notify the user, upon successful logon to the system, of the date and time of the last logon.
Guidance
Previous logon notification is applicable to system access via human user interfaces and access to systems that occurs in other types of architectures. Information about the last successful logon allows the user to recognize if the date and time provided is not consistent with the user’s last access.
Assessment Objective
the user is notified, upon successful logon to the system, of the date and time of the last logon.
Access control policy
procedures addressing previous logon notification
system design documentation
system configuration settings and associated documentation
system notification messages
system security plan
other relevant documents or records
System/network administrators
organizational personnel with information security responsibilities
system developers
Mechanisms implementing access control policy for previous logon notification