What is the most common gap auditors find on SC-15(4)?

Participants in the defined meetings are not explicitly indicated

NIST SP 800-53 Rev 5 · SC - System and Communications Protection

`SC-15(4)` Collaborative Computing Devices and Applications | Explicitly Indicate Current Participants

Q: What evidence do auditors commonly ask for on SC-15(4) Collaborative Computing Devices and Applications | Explicitly Indicate Current Participants?

System and communications protection policy; Procedures addressing collaborative computing; Access control policy and procedures; System design documentation; System configuration settings and associated documentation; System audit records.

Provide an explicit indication of current participants in organization-defined online meetings and teleconferences.

Source: NIST SP 800-53 Rev 5, SC-15(4). 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 NIST SP 800-53 Rev 5 in the compliance library.

Base controls and their enhancements. Which apply follows the baseline you are assessed against (for example FedRAMP Moderate or High, or the low, moderate and high baselines of SP 800-53B). Text in square brackets is a parameter your organisation sets.

artefacts

held by a system

at each review

hard

to go live

Policy repository / GRC workspace

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

System audit records · Policy repository / GRC workspace
Test of Mechanisms supporting and/or implementing the capability to indicate participants on collaborative computing devices · Endpoint management (MDM / EDR)

governing documentDocuments that govern the control

System and communications protection policy · Policy repository / GRC workspace
Procedures addressing collaborative computing · Policy repository / GRC workspace
Access control policy and procedures · Policy repository / GRC workspace
System design documentation · Document repository
System configuration settings and associated documentation · Policy repository / GRC workspace
List of types of meetings and teleconferences requiring explicit indication of current participants · Document repository
System security plan · 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

Participants in the defined meetings are not explicitly indicated
Anonymous or dial-in participants join without being identified to others

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

SC-15(3) Collaborative Computing Devices and Applications | Disabling and Removal in Secure Work Areas · SC-16 Transmission of Security and Privacy Attributes