RS.CO-1: Response Roles and Operations Order (NIST Cybersecurity Framework)
When a security incident strikes, confusion about who does what can cost hours—or worse. NIST Cybersecurity Framework control RS.CO-1 requires organizations to define clear roles, responsibilities, and chain of command before a response is needed. This guide shows you how to document, communicate, and verify response readiness across your team.
What this means
RS.CO-1 requires that all personnel involved in incident response understand their specific responsibilities and the sequence of actions to take when an incident occurs. This means creating and maintaining documented response procedures that assign roles (incident commander, technical lead, communications officer, etc.), define escalation paths, and establish the order of operations from initial detection through recovery. Personnel must be trained on these procedures so they can execute them reliably under pressure.
How to comply
- 1.Map all personnel involved in incident response and assign specific roles with clear responsibilities
- 2.Document the chain of command and escalation procedures, including who reports to whom
- 3.Create an incident response playbook that defines step-by-step operations order for common incident types
- 4.Establish communication protocols and notification sequences for different severity levels
- 5.Conduct tabletop exercises and simulations to validate that personnel understand their roles
- 6.Provide annual training to ensure all team members know their responsibilities and can execute quickly
- 7.Maintain an up-to-date contact list and responsibility matrix accessible to response team members
Evidence auditors look for
- Incident Response Plan document with defined roles, responsibilities, and escalation hierarchy
- Role assignment matrix showing which team members own each function (triage, containment, eradication, etc.)
- Operations order checklist or runbook for incident response procedures
- Training records demonstrating personnel completion of incident response role training
- Tabletop exercise reports or simulations showing role execution and chain-of-command validation
- Updated contact list and communication plan for incident response team
- After-action reports from past incidents documenting how roles were executed
Frequently asked questions
When will FAQs be available?
The FAQ for this control is currently being prepared.
GRCWatch's control tracking module helps you document response roles, assign team members to specific functions, and automate training reminders so your incident response plan stays current and your team stays prepared.
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