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high severity April 19, 2025 · 3 min read Unverified claim — what this is

MRC de Maskinongé - district Listed by medusa Ransomware Group

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

MRC de Maskinongé - district, unites 17 municipalities with an area of ​​more than 2,600 square kilometers. MRC de Maskinongé district office is located at 760 Saint Laurent Blvd E, Louiseville, Quebec, J5V 1H9, Canada and has 83 employees. The total amount of data leakage is 713.20 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.
MRC de Maskinongé - district Listed by medusa Ransomware Group

On April 19, 2025, the Medusa ransomware group listed MRC de Maskinongé, a municipal district in Quebec that serves 17 municipalities across more than 2,600 square kilometers, on its leak site after exfiltrating 713.20 GB of internal files.

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Reported Details of the Breach

Public reporting indicates the district office, located at 760 Saint Laurent Blvd E in Louiseville, Quebec, was targeted in a ransomware attack. The organization employs 83 people and coordinates services for a large rural territory north of Montreal. Available reporting describes the data as internal files; the exact contents have not been independently verified by third-party researchers. The Medusa leak site posted the sample files and demanded payment, following the group’s standard practice of publishing victim data when ransom is not paid.

713.20 GB of material was allegedly exfiltrated according to the attackers’ posting. No confirmed list of specific record types such as names, addresses, or financial details has been released by the district or independent analysts at the time of writing.

Why This Matters for You and Your Family

When a local government body like MRC de Maskinongé suffers a breach, the information exposed often includes details that connect directly to residents. Property records, tax filings, licensing applications, and employee data can contain your home address, phone numbers, email accounts, and dates of birth. Once these records leave controlled systems, they circulate on dark-web forums and can be purchased by anyone with basic technical skills.

Local municipal breaches affect everyday families who assume their interactions with town hall remain private. If your family lives in or does business with any of the 17 municipalities under MRC de Maskinongé, your information may now sit in an attacker-controlled archive. The breach also signals that smaller regional offices remain attractive targets because many lack the security budgets of large cities.

The Doxxing and Identity-Chain Risks

Stolen municipal files rarely stay isolated. Attackers and subsequent buyers combine them with credential leaks from other sources to build detailed profiles. A single leaked email or phone number from this incident can link your gaming username, social-media handles, and family members’ accounts. This process, known as identity chaining, turns one breach into repeated targeting through doxxing, harassment, or account takeovers.

Gaming accounts belonging to you or your children are especially vulnerable because kids often reuse passwords or email addresses tied to school or municipal programs. A credential exposed in a local government breach can cascade into a compromised Roblox, Fortnite, or Discord account within hours once the data reaches the right forum.

Medusa Ransomware Group’s Track Record

Public reporting attributes the Medusa ransomware operation to a group that emerged in 2021. The actors have claimed responsibility for attacks on hospitals, schools, manufacturers, and local governments across North America and Europe. Their typical playbook begins with initial access through phishing or exploited remote desktop services, followed by exfiltration of sensitive files before encryption. When victims refuse to pay, Medusa publishes samples on their leak site and sets short deadlines, aiming to pressure organizations through public embarrassment and the threat of full data release.

What to do

  • Run a DoxxScan to map every link between your emails, phone numbers, addresses, and online handles that may have been exposed in the MRC de Maskinongé files.
  • Rotate any password you used for municipal portals, tax services, or related 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 leak that touches your family is flagged within hours instead of months.
  • Cover the household with DoxxScan family protection that includes children’s gaming accounts which often chain back to the same addresses or parent emails leaked in incidents like this.
  • Let remediation specialists handle takedown requests for any personal information already appearing on data-broker sites connected to this claimed breach.

The incident underscores that municipal breaches now form part of the everyday risk landscape for ordinary families. Taking concrete steps promptly can limit how far the exposed data travels. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with coverage that extends to your entire household including children’s gaming accounts.

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 April 19, 2025
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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