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AC-8

AC-8: System Use Notification

The information system:

AC-8a.: Displays to users [Assignment: organization-defined system use notification message or banner] before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance and states that:
- AC-8a.1.: Users are accessing a U.S. Government information system;
- AC-8a.2.: Information system usage may be monitored, recorded, and subject to audit;
- AC-8a.3.: Unauthorized use of the information system is prohibited and subject to criminal and civil penalties; and
- AC-8a.4.: Use of the information system indicates consent to monitoring and recording;

AC-8b.: Retains the notification message or banner on the screen until users acknowledge the usage conditions and take explicit actions to log on to or further access the information system; and

AC-8c.: For publicly accessible systems:
- AC-8c.1.: Displays system use information [Assignment: organization-defined conditions], before granting further access;
- AC-8c.2.: Displays references, if any, to monitoring, recording, or auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities; and
- AC-8c.3.: Includes a description of the authorized uses of the system.

Supplemental

System use notifications can be implemented using messages or warning banners displayed before individuals log in to information systems. System use notifications are used only for access via logon interfaces with human users and are not required when such human interfaces do not exist. Organizations consider system use notification messages/banners displayed in multiple languages based on specific organizational needs and the demographics of information system users. Organizations also consult with the Office of the General Counsel for legal review and approval of warning banner content.

CIA Levels
Confidentiality	low
Integrity	low
Availability	unknown

Overlays
None

Related Controls

The controls below (if any) were marked by NIST as being related to AC-8.

Control	Description
No controls

Enhancements

The controls below (if any) add on to the requirements of AC-8.

Control	Description
No controls

Related CCIs

The CCIs below are tied to AC-8.

CCI	Definition
CCI-000048	The information system displays an organization-defined system use notification message or banner before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.
CCI-000050	The information system retains the notification message or banner on the screen until users acknowledge the usage conditions and take explicit actions to log on to or further access the information system.
CCI-001384	The information system, for publicly accessible systems, displays system use information organization-defined conditions before granting further access.
CCI-001385	The information system, for publicly accessible systems, displays references, if any, to monitoring that are consistent with privacy accommodations for such systems that generally prohibit those activities.
CCI-001386	The information system, for publicly accessible systems, displays references, if any, to recording that are consistent with privacy accommodations for such systems that generally prohibit those activities.
CCI-001387	The information system, for publicly accessible systems, displays references, if any, to auditing that are consistent with privacy accommodations for such systems that generally prohibit those activities.
CCI-001388	The information system, for publicly accessible systems, includes a description of the authorized uses of the system.
CCI-002243	The organization-defined information system use notification message or banner is to state that users are accessing a U.S. Government information system.
CCI-002244	The organization-defined information system use notification message or banner is to state that information system usage may be monitored, recorded, and subject to audit.
CCI-002245	The organization-defined information system use notification message or banner is to state that unauthorized use of the information system is prohibited and subject to criminal and civil penalties.
CCI-002246	The organization-defined information system use notification message or banner is to state that use of the information system indicates consent to monitoring and recording.
CCI-002247	The organization defines the use notification message or banner the information system displays to users before granting access to the system.
CCI-002248	The organization defines the conditions of use which are to be displayed to users of the information system before granting further access.