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AC-8

AC-8: System Use Notification

The information system:

a: Displays to users [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:
- 1: Users are accessing a U.S. Government information system;
- 2: Information system usage may be monitored, recorded, and subject to audit;
- 3: Unauthorized use of the information system is prohibited and subject to criminal and civil penalties; and
- 4: Use of the information system indicates consent to monitoring and recording;

b: 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

c: For publicly accessible systems:
- 1: Displays system use information [organization-defined conditions], before granting further access;
- 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
- 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	high
Integrity	high
Availability	unknown

Overlays
Privacy (CNSSI 1253)

CSF Categories
PR.AC-7

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	Display an organization-defined system use notification message or banner to users before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidelines.
CCI-000050	Retain 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 system.
CCI-001384	For publicly accessible systems, display system use information with organization-defined conditions before granting further access to the publicly accessible system.
CCI-001385	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	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	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	For publicly accessible systems, includes a description of the authorized uses of the system.
CCI-002243	Organization-defined system use notification message or banner is to state that users are accessing a U.S. Government system.
CCI-002244	Organization-defined system use notification message or banner is to state that system usage may be monitored, recorded, and subject to audit.
CCI-002245	Organization-defined system use notification message or banner is to state that unauthorized use of the system is prohibited and subject to criminal and civil penalties.
CCI-002246	Organization-defined system use notification message or banner is to state that use of the system indicates consent to monitoring and recording.
CCI-002247	Defines the use notification message or banner the system displays to users before granting access to the system.
CCI-002248	Defines the conditions of use which are to be displayed to users of the system before granting further access.