NIST800-AC-20 AC-20 Use of External Systems
NIST800-AC-20 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 Use of External Systems. a. [Selection (one or more): establish [Assignment: organization-defined terms and conditions]; identify [Assignment: organization-defined controls asserted to be implemented on external systems]], consistent with the trust relationships established with other organizations owning, operating, and/or maintaining external systems, allowing authorized individuals to: 1. Access the system from external systems; and 2. Process, store, or transmit organization-controlled information using external systems; or b. Prohibit the use of [Assignment: organizationally-defined types of external systems].
Reviewed and closest counterparts in the other frameworks
Reviewed rows come from a released pair; a closest match is the nearest held text and is not a reviewed row.
SOC 2
- SOC2-CC6.3 CC6.3 Role-based access, least privilege and segregation of duties (closest match)
- SOC2-CC6.6 CC6.6 Protection against threats from outside the system boundary (closest match)
- SOC2-CC9.2 CC9.2 Assessing and managing vendor and business partner risk (closest match)
- SOC2-P6.4 P6.4 Privacy commitments from vendors and third parties (closest match)
- SOC2-P6.5 P6.5 Vendor commitments to report unauthorised disclosures (closest match)
HIPAA Security Rule
- 164.308(a)(4)(i) Information Access Management (Standard) (closest match)
- 164.308(b)(1) Business Associate Contracts and Other Arrangements (Standard) (closest match)
- 164.308(b)(3) Written Contract or Other Arrangement (closest match)
- 164.314(a)(1) Business Associate Contracts or Other Arrangements (Standard) (closest match)
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