This Guidebook is intended to help in particular new employees of Computer Security Incident Response Teams (CSIRTs) (though it is likely relevant for existing CSIRT employees) understand the structure of CSIRTs, and clarify the expectations and how they can best be achieved.

“[CSIRTs are] first responders, dealing with emerging and difficult-to-predict crises, and therefore always on alert. They deal with risks and threats which stem from the digital space, and which influence the security and stability of our societies as well as our individual wellbeing.”  - Extract from Foreword by Darko Stancic