AC-9(3)

Requirement

Notify the user, upon successful logon, of changes to [Assignment: organization-defined security-related characteristics or parameters of the user’s account] during [Assignment: organization-defined time period].

Discussion

Information about changes to security-related account characteristics within a specified time period allows users to recognize if changes were made without their knowledge.

NIST 800-53A Assessment Guidance

Examine

[SELECT FROM: Access control policy; procedures addressing previous logon notification; system design documentation; system configuration settings and associated documentation; system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: System/network administrators; organizational personnel with information security responsibilities; system developers].

Test

[SELECT FROM: Mechanisms implementing access control policy for previous logon notification].

ID	Assessment Objectives
AC-09(03)	the user is notified, upon successful logon, of changes to <AC-09(03)_ODP[01] security-related characteristics or parameters> during <AC-09(03)_ODP[02] time period>.

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