Guymontigers.com data allegedly leaked by RansomHub

• Ransomware group: RansomHub
• Country: Canada
• Sector: Education
• Announcement date: October 28, 2024

RansomHub claims to have stolen data from guymontigers.com

The ransomware group known as RansomHub has listed data on its leak site that is alleged to belong to guymontigers.com. This announcement, which appeared on October 28, 2024, suggests that the threat actor may be attempting to exert ransom pressure by publishing this data on their public platform.

The incident involves a claim of a breach that allegedly occurred on October 3, 2024. While the group has published an announcement regarding the data leak, no information was provided regarding the total size of the data, the specific file count, or the ransom demand required to prevent further exposure. The announcement includes screenshots of various documents that the threat actor purports to have obtained from the institution's network.

Details of the alleged data exposure

The screenshots included in the leak announcement provide a glimpse into the types of sensitive information the threat actor claims to have accessed. These documents appear to originate from the internal systems of the organization and cover a wide range of administrative, financial, and personal categories. The exposure of such information can be highly damaging to the privacy of the individuals involved.

According to the claims made by the threat actor, the following types of data are included in the leak:

• Student health records
• Staff payroll information
• Tax forms
• Internal correspondence
• Network configuration data

The presence of these files suggests a significant breach of internal administrative processes and personal records. The screenshots specifically highlight student immunization records, staff payroll information, W-4 tax forms, internal email correspondence, network configuration files, and budget planning spreadsheets.

About Guymon Public Schools

Guymon Public Schools is a school district located in Guymon, Oklahoma. The district serves as a central educational institution providing students, parents, and staff with information regarding academic programs, school events, and sports activities.

Implications and potential risks

The nature of the allegedly leaked data may pose secondary risks such as identity theft and targeted phishing attacks for staff and students. When sensitive information like tax forms, payroll details, and health records are exposed, the individuals affected become prime targets for social engineering and fraudulent activities. Furthermore, the exposure of educational sector data may lead to legal consequences under FERPA and state-level data privacy regulations in the US.

Ransomware groups often utilize a tactic known as double extortion. In this scenario, the attackers do not only encrypt the victim's files to disrupt operations but also steal sensitive data to threaten its public release. This creates additional pressure on the organization to pay the ransom, as the threat of a data leak can lead to significant reputational damage and legal liabilities.

The RansomHub group is known to have been active in early 2024, reportedly absorbing affiliates from ALPHV; there are reports that the group ceased operations in early 2025. Despite these reports, the group remains a known entity in the threat landscape. For organizations facing such incidents, conducting a thorough forensic investigation is a critical step to determine the full scope of the leaked data. Additionally, notifying the affected individuals is a necessary step to mitigate the impact of potential identity theft and phishing attempts.

To defend against such threats, organizations in the education sector often implement defensive measures such as multi-factor authentication, regular security awareness training for staff, and robust network segmentation to prevent lateral movement by attackers. Continuous monitoring and incident response planning are also essential components of a modern cybersecurity posture.