ISO 27001A.5 — Contact with special interest groups
A.5.6
Contact with special interest groups
ISO 27001 · ISO/IEC 27001:2022 · Last verified July 2026
Objective
Establish and maintain appropriate contacts with special interest groups and professional security forums.
Points of focus
- Relevant communities identified
- Participation or monitoring assigned
- Intelligence feeds back into risk/treatment
- No dependency on a single person's private Slack
Implementation notes
Pick a small set of high-signal sources (cloud provider security bulletins, language/ecosystem advisories, one sector ISAC if applicable). Assign an owner to triage into the risk or vuln process monthly. Document how community input reaches A.5.7 threat intelligence and A.8.8 vulnerability management. Avoid vanity memberships that nobody reads.
Audit tip: Show one recent advisory that changed a control or detection rule, with ticket linkage.
Evidence auditors typically request:
- Membership or mailing-list subscriptions
- Owner assigned to monitor advisories
- Risk register entries sourced from external intel
- Meeting notes sharing community learnings
Common gaps
- SoA claims 'we follow industry best practice' with no community link
- Threat intel only from Twitter screenshots
- Knowledge leaves when one engineer resigns
Cross-Framework Mapping
| Framework | Requirement | Implementation note |
|---|---|---|
| ISO 27001 | A.5.6 | This control |
Primary sources
- ISO/IEC 27001:2022 Annex A: ISO/IEC 27001:2022 Annex A (A.5.6)
Frequently Asked Questions
No. Proportionate contacts matter — free vendor and framework communities often suffice for early-stage SaaS.
A.5.6 is relationships/channels; A.5.7 is producing and using threat intelligence from those and other sources.
Virtual communities and advisory lists fully satisfy intent when monitored and acted on.