Day four of the FIRST Conference began with a keynote presentation by Martijn de Hamer, the head of the National Cyber Security Operations Center (NCSOC) at the National Cyber Security Center (NCSC-NL) in the Netherlands. After having had various roles in the field of information security, de Hamer first started working for NCSC-NL (previously GOVCERT.NL) in 2005. Additionally, he is active in the field of CSIRT maturity and other aspects of CSIRT capacity building.