AC-20.1 · Limits on Authorized Use

Control Description

Permit authorized individuals to use an external system to access the system or to process, store, or transmit organization-controlled information only after:

Impact Baselines
Security baselines where this control applies
Not in any baseline
Control Properties
SP800-53-enhancement
organization
Enhancement
Control Statement
The control requirements

Permit authorized individuals to use an external system to access the system or to process, store, or transmit organization-controlled information only after:

(a) Verification of the implementation of controls on the external system as specified in the organization’s security and privacy policies and security and privacy plans; or

(b) Retention of approved system connection or processing agreements with the organizational entity hosting the external system.

Supplemental Guidance

Limiting authorized use recognizes circumstances where individuals using external systems may need to access organizational systems. Organizations need assurance that the external systems contain the necessary controls so as not to compromise, damage, or otherwise harm organizational systems. Verification that the required controls have been implemented can be achieved by external, independent assessments, attestations, or other means, depending on the confidence level required by organizations.

Related NIST Controls
Other NIST 800-53 controls related to this one