Cyber attack on TJMT: Federal Police and Civil Police investigate system breach
Systems at the Court of Justice of Mato Grosso went offline following a security incident. Logins and passwords were accessed, but the court denies any data breach.

Federal Police and Civil Police investigate breach of Court of Justice of MT systems
The Federal Police and Civil Police were called in to investigate a security incident that compromised the systems of the Court of Justice of Mato Grosso (TJMT) since last Monday (21), as reported by g1.globo.com. The court itself confirmed that user logins and passwords were accessed, but stated there is no evidence of a breach of personal data or judicial decisions.
The case was forwarded to the Specialised Department for Computer Crimes. The Federal Police joined the investigation due to the involvement of systems linked to the National Council of Justice (CNJ).
On Friday (25), external services remain restricted to emergency operations and procedural deadlines remain suspended. The Electronic Judicial Process (PJe) and other court systems are in the testing phase and are to be restored gradually.
The investigations seek to determine the origin of the accesses and establish whether there was an attempted breach of the systems. Unlawful access to computing devices is classified as a crime under the Penal Code, with a sentence of 1 to 4 years imprisonment and a fine provided for.
According to the Specialised Department, attacks of this type may be associated with other offences, such as information theft, unauthorised access to accounts and digital extortion. The precise identification of crimes that may have been committed will depend on the progress of the investigation.
The TJMT informed that the situation is under control and is being monitored by internal court teams, with support from technical partners. As a preventive measure, user passwords are being reset and systems remain switched off. The measure was formalised by an order from the Presidency of the TJMT, which stated that the unavailability of computing systems prevents the regular performance of procedural and administrative acts via electronic means.
Source: Google News BR — São Paulo