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high severity May 17, 2024 · 4 min read Unverified claim — what this is

Elm Grove Listed by medusa Ransomware Group

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

Elm Grove is a village in Waukesha County, Wisconsin, United States. The population was 6,524 at the 2020 census. Elm Grove was named as America's best suburb by Business Insider in October 2014. Elm Grove government is headed by a village president and overseen by a board of trustees, the seven members of which are elected to two-year terms. The total amount of data leakage is 150.6 GB

— from Medusa’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.
Elm Grove Listed by medusa Ransomware Group

On May 17, 2024, the village of Elm Grove, Wisconsin appeared on the Medusa ransomware group’s leak site. The listing states that internal files totaling 150.6 GB were exfiltrated during a ransomware attack on the municipal government. The disclosure does not specify the exact number of residents or employees whose records were taken, nor does it list the precise data types beyond claiming that sensitive internal files were stolen.

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Details in the Primary Listing

The Medusa leak site entry, accessible via the .onion link indexed by ransomware.live, claims the village’s systems were encrypted and that attackers downloaded 150.6 GB of data before offering to negotiate. The posting does not quantify affected individuals and does not itemize every file category. It simply asserts that the information is now available for public download or further extortion if the village refuses to pay. As of the listing date, no separate breach notification from Elm Grove had been filed with state regulators or residents, leaving the full scope of exposed personal information unclear.

Why This Matters for You and Your Family

When a local government like Elm Grove is hit, the records involved often include tax rolls, utility accounts, building-permit applications, employee payroll files, and correspondence that contain names, addresses, dates of birth, Social Security numbers, and financial details for thousands of current and former residents. Even though the exact volume of personal records is unknown, any family living in or doing business with the village faces heightened risk. Once municipal data reaches a ransomware leak site, it becomes freely available to identity thieves, fraudsters, and stalkers who routinely scan these repositories for fresh material.

150.6 GB is large enough to hold years of administrative records for a community of roughly 6,500 people. If your address, driver’s license information, or children’s school records are inside that archive, the exposure is permanent. You cannot force the attackers to delete the files, and copies are almost certainly already circulating on other underground forums.

The Doxxing and Identity-Chain Risk

Ransomware operators rarely stop at publishing one compressed archive. They or subsequent buyers link the newly exposed government data with other breaches to build detailed profiles. An email address found in Elm Grove’s files can be matched to gaming accounts, social-media handles, or previous credential leaks, creating an identity chain that leads directly to you and your family. This is exactly how doxxing escalates: one municipal breach supplies the home address and phone number that lets attackers hijack linked online accounts or harass family members. Credential leaks like this one frequently cascade into gaming-account takeovers, especially for children whose usernames and passwords may reuse information stored in parent or school records. Continuous monitoring that maps these connections is the only practical defense once the data has already left the village’s control.

Medusa’s Publicly Known Track Record

Public reporting attributes Medusa’s first major campaigns to late 2022. The group has since listed dozens of organizations across North America and Europe, favoring mid-sized municipalities, manufacturers, and healthcare providers. Their typical playbook begins with phishing or exploitation of remote-desktop services for initial access, followed by rapid lateral movement, data exfiltration, and deployment of encryptors. After encryption they wait a short period before publishing samples on their leak site and threatening to release the full archive unless payment is made. Medusa does not always wait for public announcements; they list victims quickly to increase pressure. The Elm Grove posting fits this pattern exactly.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity drawn from this and prior breaches.
  • Rotate any password you have used for Elm Grove village services, online tax portals, or utility accounts 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 surfaces in hours instead of months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts that often chain back to the same residential address.
  • Let remediation specialists handle data-broker takedown requests and opt-out processes that would otherwise consume months of your time.

The breach of Elm Grove demonstrates how quickly a suburban village’s internal files can become ammunition for identity theft and harassment. Acting promptly on the credentials and personal details already circulating can limit further damage. DoxxScan by GalaxyWarden delivers that speed through continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. One forward-looking decision to secure your digital footprint now can prevent the cascading consequences that typically follow these municipal incidents.

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 sample582 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 May 17, 2024
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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