Mato Grosso Health Department Hit Again in 2026

Mato Grosso’s state health department was hit by another cyberattack on Nov. 1, 2026, and temporarily suspended systems at linked units to run security checks. SES-MT said this was the second cyber incident against its technology infrastructure in 2026. It also said urgent care, emergency and hospital regulation services were still operating, although network access was limited.

What is known about the November incident?

Publicly available information confirms that the department interrupted part of its systems while carrying out security checks. The goal was to limit the impact while the affected infrastructure was reviewed. G1 also reported that operational continuity was maintained in critical services, despite restrictions on network access.

What background is linked to this case?

Sources cited by media outlets mention an attack at the beginning of March that allegedly destroyed files at the department. According to that same reporting, the attacker used LockBit and demanded US$500,000 in bitcoin for the stolen data. That point, however, is not officially confirmed in the information available for this report.

What did monitoring report about The Gentlemen?

A monitoring service reported that The Gentlemen added Mato Grosso’s Health Secretariat to a leak site. The available result did not publish a data volume or a specific description of what information may have been obtained. Based on the current material, only that mention can be confirmed, not any verifiable scope for the alleged leak.