What is a CSIRT and how does it differ from a CERT?

• A. CSIRT stands for Computer Security Incident Response Team; its primary function is to prepare for, detect, respond to, and recover from cybersecurity incidents.
• B. CSIRT is a regional abbreviation and has no formal role, while CERT is the formal incident response team.
• C. CSIRT and CERT refer to the same concept and are interchangeable.
• D. CSIRT handles only forensic analysis; CERT handles detection.

Answer: (A)

A CSIRT is a team formed to handle cybersecurity incidents across their entire lifecycle. The key idea is that this group is responsible for preparing in advance, detecting incidents, responding to contain and remediate them, and guiding recovery to restore normal operations. This lifecycle view shows why the description emphasizing preparation, detection, response, and recovery is the best fit—the CSIRT is built to manage incidents from start to finish, not just one narrow task.

CERT is related but not exactly the same label in every context. CERT (Computer Emergency Response Team) is often a specific instance or name used by particular organizations or regions, whereas CSIRT is the generic term for an incident response team. So while a CERT can be a type of CSIRT, the two terms aren’t strictly interchangeable everywhere, which is why the broader CSIRT description that covers the full incident lifecycle best captures what this concept tests.