CSIRT Maturity is an indication of how well a team governs, documents, performs and measures their function. The maturity of a CSIRT is measured with the Security Incident Management Maturity Model, also called SIM3. For the current reference version SIM3 v2 interim, see: SIM3 v2 interim standard Developments towards this new version started in 2022 and resulted in v2 interim on 1 January 2023. Wh