NIST SP 800-53 Rev 5
AC - Access Control

NIST SP 800-53 Rev 5 AC-20: Use of external systems

Requires terms to be established, or existing external system relationships identified, before authorized individuals may reach the system from external systems or handle organizational information on them, or alternatively requires organization-defined types of external system to be prohibited outright.

Other controls in AC - Access Control

You are reading one control. How much of NIST SP 800-53 Rev 5 have you already done?

NIST SP 800-53 Rev 5 AC-20 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of NIST SP 800-53 Rev 5 your existing evidence covers. Hold ISO 27001:2022 and 163 of 300 NIST SP 800-53 Rev 5 controls already carry evidence.

If you hold ISO 27001:202254.3% covered · 137 gapsIf you hold ISO 27002:202236.7% covered · 190 gapsIf you hold Cloud Security Alliance Cloud Controls Matrix (CCM) v4.0.134.3% covered · 197 gapsIf you hold CIS Controls v834% covered · 198 gapsIf you hold NIST SP 800-171 Rev 334% covered · 198 gapsIf you hold C5 (Germany)32.3% covered · 203 gaps

Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 342 were rejected on the ISO 27001:2022 pair alone.

See the released pairs, $299 eachBrowse the graph free

Query this from an agent

The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.

MCP endpointAll NIST SP 800-53 Rev 5 controls