high severity August 15, 2026 · 5 min read Unverified claim — what this is

Chelan County data breach confirmed: what leaked and whether it affects you

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

Chelan County confirmed that malware on its systems in May 2026 let someone access or copy personal information, including names, Social Security numbers, and government ID numbers. Public notices give no headcount; a filing with the Washington Attorney General says the event involves at least 500,001 Washington residents. There is no public list you can use to see whether your record was in the files.
— from the group that posted this listing’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.

Chelan County data breach confirmed: what leaked and whether it affects you

In May 2026, malware reached Chelan County computer systems. The county says it noticed suspicious activity on or about 24 May, and that information was opened or copied without permission between 20 May and 24 May. A review of that data finished on 16 July and found personal information in it. The county told federal law enforcement early, then posted a public notice and filed with the Washington Attorney General on 11 August 2026.

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The county says the information may include names; Social Security numbers (full or last four digits); driver's license or Washington ID numbers; bank or payment-card details; dates of birth; passport numbers; health-insurance or medical information; student or military ID numbers; and usernames, email addresses, and login credentials. The state's own listing of the incident describes the same mix. Public notices do not say how many people are involved. In the filing sent to the Attorney General, counsel for the county wrote that the event involves personal information relating to at least 500,001 Washington residents.

The story you heard is smaller than the file that left

Coverage has treated this as a local government tech problem: malware, an investigation, a notice on the county website. That framing is accurate and easy to scroll past if you do not live in Chelan County. It is also the part that matters least to you.

What left the county is not “a malware incident.” It is a government file that can hold the exact combination other institutions use to accept someone as you: a name, a Social Security number, a date of birth, and a driver's license or state ID number. In some records there may also be card numbers, medical or insurance identifiers, a passport number, or the email and password for a county or other login. The county has not said which departments or which years of records were involved, and it has not said which of those fields sat in any one person's row. “May include” is not reassurance. It means they cannot tell you, from the outside, how complete your record was.

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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

Severity High identifiers that cannot be reissued, alongside documents or accounts that can be misused now

Disclosed August 15, 2026

Last reviewed August 15, 2026

Affected Unconfirmed

Data exposed Full namesSocial Security numbersDriver's license or Washington ID numbersFinancial and banking informationDates of birthPassport numbersHealth insurance informationMedical information +4 more

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.

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