Belgium tax agency hit by cyberattack; MyMinfin tax portal shut down
Belgium's Federal Public Service Finance said on Wednesday, October 28, 2026 that a cyberattack hit its digital services and that it took the MyMinfin online tax portal and several other services offline as a precaution. The agency said the shutdown is intended to limit risk and allow technical work to secure its systems, and that the concrete impact of the attack is still under investigation. It said there are no indications of a data breach or that any data was stolen so far.
The agency said tax filing deadlines will be extended, including the October 31 deadline for returns with specific types of income, with the new date to follow as soon as possible. A large portion of its other applications remain available with full or partial functionality. No data exposure or affected count has been stated, so this is prepared as a Cybersecurity item, not a Breaches add.