MP.L2-3.8.5 Media Accountability
Restrict who may access media holding CUI, and keep that media accounted for whenever it moves beyond controlled areas.
3
artefacts
1
held by a system
1
at each review
moderate
to go live
SIEM / log platform
where the evidence lives
teal = a system already holds it · olive = produced at each review
system holds itEvidence a system already holds
- Transport logs recording media, custodian and destination · SIEM / log platform
periodic reviewEvidence produced at each review
- Evidence of receipt confirmation at destination · Data governance / DLP tooling
governing documentDocuments that govern the control
- Transport procedure including custody and accountability steps · Policy repository / GRC workspace
First move
Start with the 1 of 3 artefacts that already live in a system (SIEM / log platform); keep the periodic reviews but log each one as a dated record with a named reviewer.
Common gaps auditors find
- Media transported without a custody record
- Accountability ends when media leaves the site
- Courier arrangements unassessed
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 sheetMP.L2-3.8.4 Media Markings · MP.L2-3.8.6 Portable Storage Encryption