Navigate

AC-9 (1)

AC-9 (1): Unsuccessful Logons

The information system notifies the user, upon successful logon/access, of the number of unsuccessful logon/access attempts since the last successful logon/access.

Supplemental

None

CIA Levels
Confidentiality	unknown
Integrity	unknown
Availability	unknown

Overlays
Int-A, Int-B, Int-C

Related Controls

The controls below (if any) were marked by NIST as being related to AC-9 (1).

Control	Description
No controls

Enhancements

The controls below (if any) add on to the requirements of AC-9 (1).

Control	Description
No controls

Related CCIs

The CCIs below are tied to AC-9 (1).

CCI	Definition
CCI-000053	The information system notifies the user, upon successful logon/access, of the number of unsuccessful logon/access attempts since the last successful logon/access.