AC.L2-3.1.20 External Connections
Verify, then control or limit, connections to and use of external systems that are outside organizational control.
3
artefacts
0
held by a system
0
at each review
hard
to go live
Policy repository / GRC workspace
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
none for this control
periodic reviewEvidence produced at each review
none for this control
governing documentDocuments that govern the control
- Inventory of approved external systems and connection terms · Policy repository / GRC workspace
- Agreements or terms governing external system use · Policy repository / GRC workspace
- Technical controls limiting external system connections · Policy repository / GRC workspace
First move
This control is evidenced by people and documents, not systems. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date. Do not try to automate it.
Common gaps auditors find
- External cloud services used without review
- Connections permitted with no verification of the external party
- No limit on what CUI may be processed externally
Do this for your whole sheet
Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.
Build my evidence sheetAC.L2-3.1.19 Encrypt CUI on Mobile · AC.L2-3.1.21 Portable Storage Use