Krybit ransomware group lists sansilvestre.edu.pe on its leak site

• Ransomware group: Krybit
• Country: Peru
• Sector: Education
• Announcement date: June 25, 2026

Krybit claims data breach at San Silvestre School

The ransomware group known as Krybit has listed the San Silvestre School on its leak site, claiming to have successfully executed a data breach against the institution. According to the announcement made on June 25, 2026, the threat actors allege that they have compromised a significant amount of information belonging to the organization. While the group has posted the entity's details on their platform, public information regarding the specific identity and operational methods of the Krybit group remains limited.

Ransomware leak sites serve as a platform for cybercriminals to exert pressure on their victims. In many modern cyberattacks, threat actors employ a tactic known as double extortion. This method involves not only encrypting an organization's systems to disrupt operations but also exfiltrating sensitive data before the encryption occurs. By threatening to release this stolen data publicly, the attackers aim to increase the likelihood of receiving a ransom payment, leveraging the potential for reputational damage and legal repercussions against the victim.

Details of the claimed theft

The announcement made by Krybit specifies the scale of the alleged data theft. The group claims to have acquired 148.75 GB of data related to the institution's operations. The timing of the announcement coincides with the claimed date of the attack, which was also June 25, 2026.

Regarding the specific contents of the stolen information, the leak site announcement indicates that the data involves the institution's educational systems, infrastructure, and administrative details. However, the group has not provided a specific breakdown or any detailed list of the file types that were allegedly compromised during the incident.

About San Silvestre School

San Silvestre School is a prestigious private all-girls British school located in Lima, Peru. The institution is recognized for providing educational services that are focused on academic excellence.

Potential implications and risks

The exposure of data from an educational institution can lead to various secondary risks for the individuals involved, such as students and staff. These risks include the possibility of identity theft or the occurrence of targeted phishing attacks, where attackers use stolen information to deceive individuals into revealing further sensitive data or credentials.

Furthermore, because the institution operates within Peru, this incident may lead to legal consequences regarding compliance with local data protection regulations. The publication of such data can damage the operational credibility of the institution and may result in the exposure of sensitive information that was previously shared with third parties.

Given that ransomware groups frequently utilize double-extortion tactics, it is possible that persistent security vulnerabilities exist within the institution's systems. To defend against such threats, organizations typically focus on implementing robust security measures, such as multi-factor authentication, regular system patching, and comprehensive data backup strategies. Continuous monitoring of network traffic and employee awareness training are also standard defensive steps used to mitigate the risk of unauthorized access and data exfiltration.