Skip to main content

ISO/IEC 27001:2022 · Technological control

ISO 27001 Annex A 8.15: Logging

Quick answer

ISO 27001 Annex A 8.15 (Logging) is a technological control. Produce, store, protect and analyse logs that record activities, exceptions, faults and other relevant events.

What auditors look for

Auditors check that 8.15 is either justified as not applicable in your Statement of Applicability or implemented and working. Typical evidence includes:

  • Logging standard
  • Central log platform
  • Log retention and protection settings

How to implement 8.15 in practice

  1. Log authentication, admin actions and data access
  2. Protect logs from tampering
  3. Keep logs long enough for investigations
  4. Name an owner for 8.15, decide how often it runs and file evidence each time, so the control is audit-ready all year.

Recording 8.15 in the Statement of Applicability

List 8.15 with whether it applies, the reason (usually the risks it treats or a legal or contractual requirement), its implementation status and where the evidence lives. If you exclude it, explain why none of your risks or obligations require it.

Free resources

More technological controls