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high severity December 22, 2022 · 3 min read Unverified claim — what this is

SIUMED.EDU Listed by Clop Ransomware Group

If you are a customer of Siumed.Edu, here’s what is being claimed, and what it would mean for you.

SIU School of Medicine Home - SIU School of Medicine

— from Clop’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
SIUMED.EDU Listed by Clop Ransomware Group

On December 22, 2022, the SIU School of Medicine appeared on the leak site operated by the Clop ransomware group. The listing states that internal files were exfiltrated during a ransomware attack, although the exact number of records affected and the specific types of data taken remain undisclosed by the organization or the threat actors.

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Details from the Leak Site

The Clop leak site entry for siumed.edu states that the Southern Illinois University School of Medicine suffered a ransomware intrusion in which attackers successfully removed internal files before encryption. The disclosure does not quantify the volume of data or list particular categories such as patient records, employee information, or research data. Public views of the onion site at the time showed sample files offered as proof, consistent with Clop’s standard tactic of posting evidence to pressure victims. No ransom demand figure was published on the listing itself.

The incident fits the pattern of Clop’s double-extortion operations, where data is stolen first and then used as leverage even if systems are restored from backups.

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Why This Matters for You and Your Family

If you or any member of your family has received care at SIU School of Medicine, worked there, or had personal information shared with the institution, your details may now sit in an attacker-controlled archive. Even when exact data types are not publicly confirmed, medical institutions typically hold names, dates of birth, Social Security numbers, medical histories, insurance details, and contact information. Exposure of such records creates long-term risk of identity theft, insurance fraud, and targeted phishing that can affect every adult and child in the household.

Medical data carries higher street value than simple credential lists because it is harder to change and can be used to build convincing social-engineering scenarios against you or your relatives.

Doxxing and Identity-Chain Risks

Internal files from a medical school often contain spreadsheets or databases that link names to addresses, phone numbers, email accounts, and sometimes family member details. Once published or sold, these records become the foundation for doxxing chains: attackers or data brokers cross-reference the leaked information with usernames found on gaming platforms, social media, or older breaches. A single exposed email can lead to account takeovers on services used by you or your children, turning a institutional breach into personal harassment or financial loss.

Credential reuse across personal and professional accounts accelerates this cascade. Gaming accounts belonging to teenagers are frequent targets because they often share the same passwords or recovery emails as adult accounts tied to the breached institution.

Clop’s Known Track Record

Public reporting attributes the Clop group’s emergence to around 2019, with a significant increase in activity after it began exploiting vulnerabilities in file-transfer software such as MOVEit in 2023. Notable prior victims include large corporations, financial service providers, and healthcare entities. The group’s typical playbook involves initial access through unpatched remote-access software or phishing, followed by extensive internal reconnaissance, data exfiltration over weeks, and then deployment of ransomware. Clop frequently posts victim data on its dark-web leak site when ransom demands are ignored, using countdown timers and sample file releases to increase pressure. The exact attribution of every incident listed under the Clop name is sometimes debated, but the operational style—large-scale data theft followed by public shaming—has remained consistent.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
  • Rotate any password you ever used at SIU School of Medicine or related university systems, and enable 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure that touches you or your family is caught in hours, not months.
  • Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts that often chain back to the same addresses or recovery emails.
  • Let remediation specialists perform hands-on takedown requests across data brokers and leak repositories on your behalf.

The exposure of SIU School of Medicine data illustrates how institutional breaches continue to place ordinary families in the crosshairs long after the initial attack. Taking concrete steps now can limit how far those stolen files travel. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists—including protection for your family’s gaming accounts that frequently become the next link in doxxing chains.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed December 22, 2022
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
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