Computer Incident Response Team (CIRT/CSIRT)
Security+ 🏆 • Security Operations 🛡️
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Difficulty: premium
Definition
A Computer Incident Response Team is the group that prepares for and coordinates the handling of cybersecurity incidents—detecting, triaging, containing, eradicating, and recovering while communicating clearly and capturing lessons learned.
Examples
- After suspicious logins are detected, the CIRT validates the alert, forces MFA resets, isolates two endpoints, and issues an internal advisory within an hour.
- Ransomware strikes a file server. The CIRT cuts network access to the affected segment, preserves forensic images, restores from clean backups, and documents a timeline for leadership.
Discover 🔎
A CIRT turns chaos into an organized response. It defines who leads, who does what, and in what order. When an incident hits, minutes matter: clear roles, prepared tools, and practiced playbooks keep damage small and recovery fast. Between incidents, the team strengthens defenses and readiness so the next event is easier to handle.
Tip: The interactive version includes progress tracking, decks, and premium deep dives.