AC-9(2) Successful and Unsuccessful Logons
Control enhancement of AC-9 Previous Logon Notification
Control
Notify the user, upon successful logon, of the number of [Assignment: Selection: successful logons | unsuccessful logon attempts | both] during [Assignment: time period].
Discussion
Information about the number of successful and unsuccessful logon attempts within a specified time period allows the user to recognize if the number and type of logon attempts are consistent with the user’s actual logon attempts.
Need AC-9(2) implemented and evidenced?
We assess where you stand against this control, document the gap, and build the remediation plan your auditor and your board will both accept.
Control catalog and framework text on this page is reproduced from official NIST publications — a public-domain work of the U.S. Government (17 U.S.C. §105). Maverc commentary, groupings, and readiness guidance are our own and are not part of any NIST publication.