What evidence do auditors commonly ask for on OIS-05 Contact with Relevant Government Agencies and Interest Groups?

Membership confirmations or subscriptions for security interest groups and advisory feeds; Register of named authority contacts showing the date of the last exchange with each; Advisories received during the period traced to the tickets or register entries they triggered; Notes from information exchange meetings or briefings attended by provider staff.

What is the most common gap auditors find on OIS-05?

Feeds subscribed to but nothing shows anyone reads or acts on them

BSI C5 (121-criteria catalogue) · C5: Organisation of Information Security

`OIS-05` Contact with Relevant Government Agencies and Interest Groups

Maintain working contact with relevant authorities and security interest groups to obtain current threat and vulnerability intelligence, and feed what is received into the risk handling and vulnerability handling procedures.

Source: BSI C5 (121-criteria catalogue), OIS-05. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open BSI C5 (121-criteria catalogue) in the compliance library.

The edition of the catalogue is not stamped here; check the edition your attestation is issued against.

artefacts

held by a system

at each review

hard

to go live

Document repository

where the evidence lives

teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

none for this control

periodic reviewEvidence produced at each review

Notes from information exchange meetings or briefings attended by provider staff · Document repository

governing documentDocuments that govern the control

Membership confirmations or subscriptions for security interest groups and advisory feeds · Document repository
Register of named authority contacts showing the date of the last exchange with each · Policy repository / GRC workspace
Advisories received during the period traced to the tickets or register entries they triggered · Policy repository / GRC workspace

First move

No system holds this evidence for you: it is people and documents. Reminders and routing to the owner still save time. Put the document under version control with an owner and review date, and log each review as a record with reviewer and date.

Common gaps auditors find

Feeds subscribed to but nothing shows anyone reads or acts on them
Received advisories cannot be traced to any vulnerability handling or risk decision
Named contacts have left the organisation and were never replaced
German public sector customers are served with no BSI channel established at all

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

OIS-04 Segregation of Duties · OIS-06 Risk Management Policy