Belgium finance and tax agency hit by cyberattack, taking MyMinfin offline

Belgium's Federal Public Service Finance said its digital services were disrupted on Wednesday by a cyberattack, forcing the temporary shutdown of its online tax portal and several other services. The agency said MyMinfin, the platform used by individuals and businesses to manage tax returns and other financial documents, had been taken offline as a precaution. Officials said they were investigating the incident and securing systems while services remained unavailable.

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The finance agency said some upcoming tax filing deadlines affected by the disruption would be extended, with new dates to be announced later. It did not give a timeline for when the portal and other online services might return. The statement also said there were so far no indications that personal data had been breached or compromised, although the investigation was continuing.

The disruption affects a central part of Belgium's tax administration, where digital filing and document management are widely used by both households and companies. Taking MyMinfin offline means users cannot currently access the portal for routine tax-related tasks, which can create immediate administrative pressure for taxpayers and the agency alike. Extending deadlines is intended to reduce the risk of penalties for people and businesses unable to file on time.

Cyberattacks on public-sector systems can have wider consequences than a temporary service outage because they may interrupt revenue collection, delay compliance processes and increase the workload on officials handling manual alternatives. In this case, the agency's focus on securing systems before restoring access suggests the priority is containment rather than rapid reactivation. The absence of confirmed data compromise may ease some concerns, but it does not remove the operational impact of the shutdown.

The incident comes at a time when governments across Europe continue to face repeated attempts to disrupt public services through cyber means. Tax and finance agencies are particularly sensitive targets because they hold large volumes of personal and business information and support essential state functions. Even when no data theft is confirmed, a successful disruption can still affect trust in digital government services and create knock-on effects for filing, payments and administration.

What remains unclear is the scale of the attack, how it entered the agency's systems and when services will be fully restored. Officials have not said whether the disruption was limited to a specific platform or affected broader internal systems. The key developments to watch are the outcome of the investigation, any further extension of deadlines and whether new information emerges about possible data exposure.

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