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Recent Breaches › Montana State University Listed by royal Ransomware Group

HIGH severity claimedUnverified claimHow we verify

Montana State University Listed by royal Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

RBRecent Breaches Breach Intelligence·April 20, 2023
Montana State University Listed by royal Ransomware Group

Reported April 20, 2023.

HIGH
Severity
April 20, 2023
Disclosed
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The Montana State University Listed by royal Ransomware Group (reported April 20, 2023) is an unverified claim; the data involved is undisclosed belonging to roughly unknown people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.

Severity & verification
HIGH severity claimedUnverified claim
Exposes medical data.
Published on a ransomware group’s leak site — an unverified extortion claim until the named organization or credible reporting corroborates it.
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Montana State University was listed by the Royal ransomware group on or around April 20, 2023, according to public breach reporting. The listing asserts that internal files were taken in a ransomware attack. The number of people affected has not been established in available reporting, and independent confirmation of the full scope remains limited.

For students, staff, alumni, and others connected to the university, a claim of this kind matters because educational institutions routinely hold personal, academic, financial, and sometimes health-related records. Until the university or investigators provide a fuller accounting, the practical picture rests on what the threat actor has claimed and on what is typical for organisations of this type.

What happened

Public reporting states that Montana State University, based in Bozeman, was named on the leak site associated with the Royal ransomware group, with the incident reported on April 20, 2023. The available summary describes the event as a ransomware attack in which internal files were allegedly exfiltrated. The volume of data, the precise method of intrusion, the duration of any access, and whether systems were encrypted are not independently detailed in the facts provided beyond the group’s own statements.

In its listing text, the group claimed that the university “lost 105GB” of data and that the material included financial and administrative documents as well as students’ personal and medical information. It also stated that further material would be shared. These assertions come from the threat actor and should be treated as unverified claims unless corroborated by the institution or by forensic reporting. The number of individuals affected is recorded as unknown.

Inside royal

Royal is a ransomware operation that became widely tracked in public cybersecurity reporting in 2022 and 2023. Like other groups in the double-extortion model, Royal has typically sought both to encrypt victim environments and to steal data, then pressure organisations by threatening to publish or auction the stolen material on a dedicated leak site if a ransom is not paid. Public analyses have associated the group with targeted intrusions against a range of sectors, including education, rather than purely opportunistic mass scanning alone, though exact initial-access methods vary by incident and are often not fully disclosed.

Royal’s public communications have often included brief victim descriptions, claimed data volumes, and statements about the types of files allegedly taken. Those posts are advocacy for the attackers’ leverage; they are not audited inventories. In this case, the listing of Montana State University is therefore best read as a claim by the group that it held and intended to release university data, not as a confirmed catalogue of every file involved. No additional statements by Royal about this specific victim beyond the reported summary are treated as established fact here.

About Montana State University

Montana State University is a public research university in Bozeman, Montana. Like other large public universities, it delivers undergraduate and graduate education, research, and campus services, and it maintains administrative systems for admissions, enrolment, employment, finance, and student support. Institutions of this kind typically store identity data, academic records, contact details, billing and financial-aid information, employee records, and, in some units, health or counselling-related information subject to privacy rules.

A breach claim against a university is consequential because the organisation sits at the centre of many individuals’ long-term records—not only current students and staff, but often applicants, alumni, donors, research partners, and contractors. Disruption or exposure can affect academic continuity, trust in institutional safeguards, and the privacy of people who may have had little choice about providing data in order to study or work.

What was likely exposed

The facts name the exposed material in general terms as internal files exfiltrated in a ransomware attack. The Royal listing text further claims that the haul included financial and administrative documents showing “money flow,” as well as students’ personal and medical information, and it cites a figure of 105GB. Those specifics are the group’s claims; they are not independently verified in the material provided, and the exact contents of any archive remain unconfirmed in public detail here.

Universities commonly hold student biographic and contact data, academic transcripts and enrolment records, employee and payroll information, vendor and budget documents, and, where health or counselling services exist, sensitive medical or disability-related information. Whether any particular category was present in the alleged 105GB set cannot be stated as fact from the available record. People connected to the university should assume that a range of internal documents could be in scope until official notices say otherwise, without treating the attackers’ inventory as proven.

Why it matters

If personal or financial records were taken, affected individuals can face risks that unfold over months or years: targeted phishing that references real university details, attempts to open accounts or file fraudulent claims with stolen identifiers, and exposure of medical or other sensitive attributes that are difficult to change. Even administrative and financial documents that do not name every student can still reveal operational patterns, vendor relationships, or internal processes that aid further social engineering against staff or partners.

For the university, a ransomware-related data theft claim can mean investigatory and notification costs, possible regulatory scrutiny depending on the data types involved, and lasting reputational pressure—especially where students’ personal or medical information is alleged. Because the count of people affected is unknown and official confirmation of file contents is limited in the public facts, the immediate priority for potentially affected people is cautious monitoring rather than panic, paired with attention to any direct notices from the institution.

If your data was in this claimed breach

If you studied at, worked for, or otherwise shared information with Montana State University, treat the Royal listing as a reason to heighten caution until you receive clear official guidance. Watch for unexpected emails, calls, or messages that invoke university accounts, aid, grades, or medical services; verify any request through known institutional channels rather than links or numbers in the message. Consider placing fraud alerts or credit freezes if you believe identity data may have been involved, and review bank and benefits statements for unfamiliar activity. Change passwords on university-related and reused accounts, and enable multi-factor authentication where available.

You can also run a free exposure scan of your email to check whether your information has already surfaced in known breach data sets, which may help you prioritise further monitoring. Keep any notice you later receive from the university; it may specify which records were involved and what support is offered. Public detail on this incident remains limited to the reported listing and the group’s claims, so rely on verified updates from the institution when they appear.

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

Editorial & sourcing policy
Recent Breaches is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data, and we do not hold the data claimed in leak-site listings. Incidents are compiled from publicly accessible sources and threat-intelligence platforms and are reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — write to support@galaxywarden.com or press@recentbreaches.com.
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How this breach connects

Company

Attributed to

Method

CompanyMontana State University security record
88/100
DoxxScan™ · Low doxx risk
B 83Good record

1 reported incident on record.

See Montana State University’s full breach history →

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Read GalaxyWarden’s full analysis of the Montana State University Listed by royal Ransomware Group →

Source: threat-actor leak-site listing

Publicly posted by royal — unverified claim, pending independent verification

Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.

Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.

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