Brazil's Tribunal de Justiça do Estado do Rio Grande do Sul Listed by revil Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On April 28, 2021, Brazil's Tribunal de Justiça do Estado do Rio Grande do Sul was listed on a ransomware group's leak site. The listing indicated that internal files had been taken during a ransomware operation, though the number of individuals affected and the precise contents of any exfiltrated material remain undisclosed. This development occurs against a backdrop of repeated targeting of government and judicial bodies by ransomware operators, where data held by courts can include records that affect legal proceedings and personal identifiers.

Breaking down the breach

The incident was reported on April 28, 2021, when the Tribunal de Justiça do Estado do Rio Grande do Sul appeared on the leak site associated with the revil group. The group claims to have stolen internal data from the court. No confirmed count of affected individuals has been released, and details on the method of initial access or the volume of material taken are not publicly specified in available records.

The group behind it: revil

REvil operates as a ransomware-as-a-service affiliate model in which developers supply encryption tools and a leak platform while separate operators conduct intrusions. Public reporting has documented the group's use of double-extortion tactics, in which data is both encrypted and threatened with disclosure. The group has previously listed other government and corporate victims on its site; any specific claims about the Tribunal remain limited to the listing itself and have not been independently verified beyond the announcement.

Who is Brazil's Tribunal de Justiça do Estado do Rio Grande do Sul?

The Tribunal de Justiça do Estado do Rio Grande do Sul serves as the highest court for the state judiciary in Rio Grande do Sul, Brazil. It adjudicates civil, criminal, and administrative cases and maintains records that include case filings, party identifiers, and internal administrative documents. Judicial institutions hold data that can influence ongoing legal matters and contain identifiers tied to citizens involved in court proceedings, making any compromise a matter of institutional continuity as well as individual privacy.

The information in question

The available information states that internal files were exfiltrated during the ransomware attack. No further breakdown of file categories or data fields has been released. Organisations of this type routinely process case documents, personal identifiers, and administrative correspondence; however, the exact composition of the material claimed in this incident is unconfirmed.

The real-world impact

Exposure of court records can create practical difficulties for individuals whose cases involve sensitive personal details, potentially affecting privacy in legal contexts. For the Tribunal, the event adds to operational burdens associated with incident response and any subsequent verification of data integrity. Because the scale of exposure remains unknown, the extent of downstream effects on specific persons cannot yet be quantified.

Were you affected?

Individuals concerned about possible exposure can begin by monitoring official communications from the Tribunal and reviewing personal records for any signs of misuse. Practical steps include:

• Checking court portals or contacting the Tribunal directly for updates on the incident.
• Running a free exposure scan of email addresses against known breach data sets to identify prior listings.
• Reviewing financial and identity accounts for unusual activity and enabling available alerts.

Public detail on individual notification remains limited at this stage.

AICompiled with AI assistance from public sources and published under our editorial standards.