NIST800-AC-20(1) AC-20(1) Use of External Systems | Limits on Authorized Use
NIST800-AC-20(1) in NIST SP 800-53 Rev 5 (NIST SP 800-53 Rev 5, Release 5.2.0). All NIST SP 800-53 Rev 5 controls held. Open NIST SP 800-53 Rev 5 on the standards site.
The control as we hold it
AC-20(1) Use of External Systems | Limits on Authorized Use. 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.
Reviewed and closest counterparts in the other frameworks
We hold no cross-framework row for NIST800-AC-20(1) yet. The reviewed pairs page lists the released pairs and their coverage.
What an auditor commonly asks for
General guidance for this control area (domain: AC - Access Control), in our words, not a statement of the standard and not binding on an assessor.
- the access-control policy and procedures
- the account-management and privilege records
- the periodic access-review output