high severity May 01, 2026 · 4 min read Unverified claim — what this is

Winona County Listed by Interlock Ransomware Group

If you are a resident of Winona County, here’s what is being claimed, and what it would mean for you.

Winona County is located in the Mississippi River blufflands of southeastern Minnesota. They have been negligent regarding security and the data they store, which has resulted in a breach and the public disclosure of all the confidential data they held. As a result, we are now able to offer you a large database containing resident records, tax and budget documents, police records, and data from other institutions.
— from Interlock’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.

Winona County Listed by Interlock Ransomware Group

On January 22, 2026, Winona County in southeastern Minnesota appeared on the leak site of the Interlock ransomware group, with attackers claiming to have exfiltrated and published a large volume of internal files including resident records, tax and budget documents, police records, and data from other local institutions.

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Reported Details of the Breach

Public reporting indicates the county, located in the Mississippi River blufflands, was listed after what the group described as a ransomware attack. The leaked material reportedly contains confidential resident information along with official government documents. Available reporting describes the county as having been negligent in its security practices, resulting in the exposure. The exact number of individuals affected remains unknown, and no precise inventory of every file has been independently verified.

Internal files were allegedly exfiltrated and made available on the Interlock leak site, according to the group's posting. No confirmed timeline for when the initial intrusion occurred has been publicly detailed beyond the January 22 listing date.

Why This Matters for You and Your Family

If you or any member of your family lives in Winona County or has interacted with its services, your personal information may now sit in a publicly accessible database. Resident records often include names, addresses, dates of birth, Social Security numbers, and financial details. Police records can contain incident reports, victim information, or witness statements. Tax and budget documents sometimes list property ownership data or payment histories that tie directly back to households.

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Found on people-search siteswe remove these

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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

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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 Interlock · 126 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed May 01, 2026

Last reviewed August 8, 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

Interlock — 126 incidents tracked

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

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