2026 Dutch Ministry of Finance — unauthorized access to policy systems (employees)

The Netherlands Ministry of Finance confirmed a cyber incident in which ICT security detected unauthorized access on March 19, 2026 to systems supporting certain primary processes in its policy department. Access was blocked the same day; tax collection, customs, and benefits systems handling millions of returns were reported unaffected. Officials said a portion of employees' work was impacted but did not publish a count of affected people or confirm data exfiltration while the investigation continued. No threat actor claimed responsibility in early public reporting.