high severity September 10, 2026 · 3 min read Unverified claim — what this is

mankatoclinic.com Listed by Chaos Ransomware Group

If you were named in this filing, here’s what is being claimed, and what it would mean for you.

The Mankato Clinic was founded Mankato, Minnesota in 1916, by five area physicians who believed that a comprehensive, multi-specialty group practice offered the best means of providing quality health care to the residents of southern Minnesota. The mission of the Mankato Clinic is to improve the hea…
— from Chaos’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.

mankatoclinic.com Listed by Chaos Ransomware Group

The Mankato Clinic has been listed on the Chaos ransomware leak site, according to a record dated September 10, 2026. The company has not publicly confirmed the claim as of this writing.

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What This Listing Actually Means for You Right Now

If you have received care at the Mankato Clinic, a ransomware-extortion group claims your information appears in material they say they obtained from the organization. Because no independent verification exists, it remains an unconfirmed claim rather than an established breach. The filing does not state how many people are involved, does not list any specific categories of information, and provides no incident date—only the September 10, 2026 filing date.

This uncertainty is important. Without confirmed categories, you cannot yet know whether any record tied to you contains sensitive details. The absence of permanent identifiers such as Social Security numbers in the available record is one piece of relative reassurance, though the full picture remains unknown.

Why a Leak-Site Listing Is Not the Same as Proof

Ransomware groups maintain leak sites as a pressure tactic during extortion negotiations. They frequently post organizations long before any data is independently examined. Many listings later prove to be recycled material from earlier incidents, exaggerated claims, or entirely unconnected data. Some listings are removed after payment or negotiation without any public explanation.

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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.

Report details & sourcing

Attributed to Chaos · 96 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed September 10, 2026

Last reviewed September 10, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

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.

Threat-actor tracker

Chaos — 96 incidents tracked

Every breach we've attributed to Chaos, in one running log. See who else they've hit →

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