De La Salle High School (dlshs.org) Listed by fog Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

For students, parents, staff and alumni connected to De La Salle High School, the appearance of the school on a ransomware group's listing raises immediate practical questions about whether personal or institutional records have left the organisation's control. Public reporting indicates that the fog ransomware group claims to have listed De La Salle High School (dlshs.org) after a ransomware attack in which internal files were exfiltrated, with a reported volume of 20 GB. The number of people affected remains unknown, and exact details of what was taken are limited.

This matters because schools routinely hold sensitive records that can be misused for identity fraud, targeted phishing or other harm long after an incident is first reported. The listing itself is a claim by the group; independent confirmation of the full scope has not been detailed in the available facts.

Inside the incident

According to the reported information, De La Salle High School (dlshs.org) was listed by the fog ransomware group on or around 24 January 2025. The group claims that internal files were exfiltrated in a ransomware attack and that the volume of data involved is 20 GB. No further public detail has been provided on the precise date the intrusion began, how access was obtained, whether systems were encrypted, or whether any ransom demand was made or paid.

The number of individuals whose information may be involved is listed as unknown. Beyond the statement that internal files were taken, the available record does not name specific file categories, databases or systems. Timing of discovery, notification to affected parties, and any containment steps remain undisclosed in the facts provided. The incident is therefore known primarily through the group's leak-site listing and the associated summary of 20 GB of exfiltrated material.

The group behind it: fog

Fog is a ransomware operation that has appeared in public reporting as a group that conducts double-extortion attacks: encrypting systems while also stealing data and threatening to publish it if demands are not met. Like many contemporary ransomware crews, fog typically advertises victims on a dedicated leak site, posts sample files or volume claims, and uses the threat of public release as leverage. Public accounts of the group's activity describe opportunistic targeting across sectors rather than exclusive focus on education, with listings used to pressure organisations into negotiation.

In this case the group claims De La Salle High School as a victim and asserts that 20 GB of internal files were exfiltrated. Those assertions originate from the listing itself and should be treated as unverified claims unless independently confirmed. No additional statements attributed to fog about this specific school—such as particular file names, ransom amounts or deadlines—appear in the provided facts.

Who is De La Salle High School (dlshs.org)?

De La Salle High School is a secondary educational institution operating under the domain dlshs.org. High schools of this type typically maintain records for current and former students, parents or guardians, faculty, staff and sometimes alumni or donors. Such organisations sit within the education sector, which has become a frequent target for ransomware because schools hold large volumes of personal data, often operate with constrained IT resources, and face strong pressure to restore operations quickly for the sake of students and families.

A breach involving a high school is consequential precisely because the data held can include identifiers of minors, contact details, academic histories, health or special-needs information, employment records and financial or billing data. Even when the precise contents of an exfiltration remain unconfirmed, the mere possibility that such material has left institutional control creates lasting risk for the people named in those records and for the school's ability to maintain trust and continuity of service.

What was likely exposed

The facts state that internal files were exfiltrated in a ransomware attack and that the reported volume is 20 GB. No further breakdown of data types—such as student records, staff files, emails, financial documents or medical information—is provided. Exact contents therefore remain unconfirmed.

Organisations of this kind commonly hold student information systems, personnel files, email archives, administrative documents and backup sets. Any of these could fall under the broad description of “internal files.” Because the public record does not itemise what was taken, it is not possible to state with certainty which categories of data, if any, left the school’s systems. Readers should treat the 20 GB figure and the “internal files” description as the group’s claim rather than a verified inventory.

What's at stake

For individuals, the principal risks are identity theft, fraudulent account openings, targeted phishing that references real school affiliations, and the long-term exposure of personal details that are difficult to change—especially for minors. Even limited data can be combined with other breaches to build fuller profiles. For the school, consequences can include operational disruption, costs of investigation and notification, potential regulatory scrutiny, and erosion of confidence among families and staff.

Because the number of people affected is unknown and the precise data types are undisclosed, the scale of these risks cannot yet be quantified. The 20 GB volume claim, if accurate, suggests a non-trivial collection of material, but volume alone does not reveal sensitivity. The absence of Reported Details means affected parties must proceed on the assumption that personal information could be involved until clearer information emerges.

If your data was in this claimed breach

If you are a student, parent, staff member or alumnus of De La Salle High School, treat the listing as a signal to increase caution rather than as proof that your specific records were taken. Monitor financial and credit accounts for unexpected activity, enable multi-factor authentication on email and important online services, and be alert to phishing messages that reference the school or claim to offer breach-related help. Consider placing fraud alerts with credit bureaus if you believe sensitive identifiers may have been exposed. Keep records of any official communications you receive from the school about the incident.

You can also run a free exposure scan of your email address to check whether it has already appeared in known breach data sets. That step will not confirm or rule out involvement in this specific incident, but it can surface other exposures that warrant attention. Continue to rely on official notices from the school for the most accurate updates as more information becomes available.

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