British School of Brasilia listed on thegentlemen ransomware leak site

• Ransomware group: thegentlemen
• Country: Brazil
• Sector: Education
• Announcement date: January 20, 2026

The threat actor known as thegentlemen has listed the British School of Brasilia on their leak site. This announcement, made on January 20, 2026, claims that the group has obtained data belonging to the educational institution.

The alleged data breach incident

The group known as thegentlemen has published a leak announcement claiming to have obtained data belonging to the British School of Brasilia. While the institution's name is mentioned in the post, no specific details regarding the nature of the alleged data have been provided. The claim suggests the attack may have occurred around February 19, 2025, though this remains unverified.

At this stage, there is no clear evidence regarding the scope of the alleged data. The provided screenshot associated with the announcement displays a technical error message related to the group's leak site, which complicates the verification of the claim. Furthermore, public information regarding the specific methods, motivations, or identity of the group known as thegentlemen remains limited.

Details regarding the alleged leaked data

Regarding the content of the alleged breach, there is no information available regarding the nature of the leaked data. The listing names no specific data types.

Organization profile

The British School of Brasilia is an educational institution that offers contemporary British international education from Early Years Foundation Stage onwards, as part of the British Schools Foundation. Catering to both local and expatriate families, the school provides a robust educational framework while promoting student engagement through various clubs and events in an inclusive environment.

Risk assessment and sector implications

Given that the institution operates in the education sector, the potential verification of these claims could pose a risk of exposing student and staff data. Ransomware attacks in the education sector often involve double extortion tactics, where actors not only encrypt systems but also threaten to leak sensitive information to pressure organizations into paying a ransom. This method increases the pressure on institutions to comply with demands to avoid public exposure.

Under Brazil's data protection legislation, LGPD, the institution may face mandatory data breach notification requirements if the claims are validated. The publication of any alleged data could trigger secondary risks such as identity theft and targeted phishing attacks for individuals within the institution. Such attacks often target the personal information of students, parents, and faculty members to gain further access or commit fraud.

As there is insufficient data regarding the group's methods and motivations, the trajectory of any potential ransom demand or data leak process remains uncertain. Organizations in this sector typically focus on defensive measures such as implementing robust access controls, maintaining regular offline backups, and conducting regular security awareness training to mitigate these types of risks.