DE.DP-4: Detection Communication — NIST Cybersecurity Framework
Detection systems only work if the right people know about threats. DE.DP-4 requires your organization to communicate security event detection information effectively across teams. This control ensures that detected anomalies and incidents reach incident responders, security leadership, and other stakeholders in time to act.
What this means
Event detection information refers to alerts, logs, and notifications generated when your monitoring systems identify suspicious or anomalous activity. Detection communication means establishing processes and channels to report these findings to appropriate personnel—security teams, incident response, management, or compliance officers. The control ensures information flows reliably and reaches decision-makers without delay, preventing blind spots where critical alerts go unnoticed.
How to comply
- 1.Define which security events require immediate communication based on severity and business impact
- 2.Establish communication channels (SIEM alerts, ticketing systems, email, escalation protocols) for different event types
- 3.Specify which roles and teams receive notifications for each event category
- 4.Document escalation procedures for high-severity detections requiring urgent response
- 5.Test communication workflows regularly to verify alerts reach intended recipients
- 6.Log all detection communications to create an audit trail of who was notified and when
- 7.Review and update communication procedures when business needs or threat landscape changes
Evidence auditors look for
- SIEM configuration showing alert rules with defined recipients and delivery methods
- Incident response runbook specifying who receives critical security event notifications
- Email distribution lists and Slack channels documented for different alert severity levels
- Escalation matrix showing which roles are notified based on event classification
- Log records demonstrating that detection alerts were transmitted to relevant teams
- Communication testing results confirming delivery of test alerts to all specified recipients
- Change log showing updates to detection communication procedures over the past 12 months
Frequently asked questions
When will FAQs be available?
The FAQ for this control is currently being prepared.
GRCWatch automates detection alert routing and creates timestamped communication logs that prove compliance with DE.DP-4—eliminating manual notification processes and audit evidence gathering.
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