An organization's incident response is conducted by the computer incident response team.
Alternate terms for CSIRT include CIRC (Computer Incident Response Capability), CIRT (Computer Incident Response Team), IRC (Incident Response Center or Incident Response Capability), IRT (Incident Response Team), SERT (Security Emergency Response Team) and SIRT (Security Incident Response Team). Internal CSIRTs often use one of the terms along with an identifier. The national CSIRT in the United States, for example, is US-CERT.