MP-6 Media sanitization
Requires organization-defined media to be sanitised before disposal, before it leaves organizational control and before reuse, using defined techniques, with the mechanism chosen to match the sensitivity of the informati
4
artefacts
1
held by a system
2
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
- Certificates of destruction or sanitisation logs with serial numbers · SIEM / log platform
periodic reviewEvidence produced at each review
- Verification records confirming sanitisation was effective · Data governance / DLP tooling
- Evidence covering media returned to lessors, vendors or cloud providers · Vendor register / contract repository
governing documentDocuments that govern the control
- Sanitisation procedure specifying technique per media type and classification · Policy repository / GRC workspace
First move
Start with the 1 of 4 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
- Technique chosen by convenience rather than matched to the information classification
- No verification step, so a failed wipe is indistinguishable from a successful one
- Solid state media treated with methods designed for magnetic disks
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 sheet