ID.AM-03 Representations of the organization's authorized network communication and internal and external network data flows are maintained
Representations of the organization's authorized network communication and internal and external network data flows are maintained.
5
artefacts
1
held by a system
1
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
- Firewall rule base traceable to authorized flows · Cloud console / configuration management
periodic reviewEvidence produced at each review
- Annual flow validation walkthrough records · Document repository
governing documentDocuments that govern the control
- Network diagrams with current data flow annotations · Policy repository / GRC workspace
- Authorized communication matrix with allowed protocols · Policy repository / GRC workspace
- Data flow diagrams covering regulated data · Policy repository / GRC workspace
First move
Mostly documents and reviews. Pull the 1 system-held artefact from your Cloud console / configuration management on a schedule; put the documents under version control with an owner and review date, and log each review as a dated record with a named reviewer.
Common gaps auditors find
- Diagrams outdated after migrations
- Cloud and partner flows missing
- Firewall rules outlive their justification
- No flow validation performed
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 sheetID.AM-02 Inventories of software, services, and systems managed by the organization are maintained · ID.AM-04 Inventories of services provided by suppliers are maintained