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high severity November 02, 2025 · 4 min read Unverified claim — what this is

Mayco International [www.maycointernational.com] Listed by anubis Ransomware Group

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

Data breach at automotive industry leader.

— from Anubis’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.
Mayco International [www.maycointernational.com] Listed by anubis Ransomware Group

On November 2, 2025, automotive supplier Mayco International appeared on the leak site of the Anubis ransomware group, with the attackers claiming to have exfiltrated internal files from the company’s network.

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Reported Details of the Incident

Public reporting indicates that Anubis posted Mayco International to its dark-web leak portal, listing the Michigan-based automotive manufacturer as a victim. The posting includes samples of allegedly stolen data and states that internal files were taken during a ransomware incident. Exact volume of data and the total number of individuals whose information may be exposed remain unclear, as neither Mayco nor the ransomware group has released a full victim count or complete data inventory. Available reporting describes the exposed material as internal files rather than a simple credential dump, which often signals broader business records, vendor lists, or employee-related documents.

The incident follows the typical ransomware pattern of initial access, data theft, and subsequent extortion pressure. No evidence has surfaced that the attackers have yet published the full archive, but the mere listing on a ransomware leak site usually means negotiations have failed or a deadline has passed.

Why This Matters for You and Your Family

When a company like Mayco International suffers a breach, the people most directly affected are often its employees, their spouses, dependents, and anyone whose personal information appears in the stolen files. Internal files frequently contain Social Security numbers, dates of birth, home addresses, direct-deposit details, and health-insurance records. Once that information reaches a ransomware leak site, it can be downloaded by identity thieves, sold on underground forums, or used to launch targeted attacks against you and your family.

Even if you have never heard of Mayco International, modern supply chains mean your data can travel farther than you expect. A vendor, contractor, customer, or even a child’s sports-league sponsor may have shared information that ultimately resided on the compromised network. The result is the same: your family’s details are now at higher risk of fraud, phishing, or harassment.

The Doxxing and Identity-Chain Risks

Ransomware groups rarely stop at one dataset. A single leaked internal spreadsheet can link your work email to personal phone numbers, home addresses, and family-member names. Attackers then cross-reference those details with credentials stolen in other breaches, creating what security analysts call an identity chain. One exposed gaming username belonging to your child, for instance, can be tied back to the same household address now circulating from the Mayco files. That linkage turns a corporate breach into a personal doxxing vector that can lead to swatting, harassment, or account takeovers across email, banking, and social media.

Credential leaks like this one cascade into gaming accounts because many families reuse passwords or security questions across work, personal, and entertainment logins. A teenager’s Roblox or Fortnite credentials harvested from a family computer listed in the Mayco data can give attackers persistent access that reveals even more location and identity details.

Anubis Ransomware Group’s Known Track Record

Public reporting attributes the Anubis ransomware operation to a group that emerged in early 2024. The gang has since claimed responsibility for attacks on dozens of organizations, primarily in manufacturing, logistics, and professional-services sectors. Notable prior victims include mid-sized industrial firms whose internal documents were published after ransom demands went unmet. Their standard playbook involves gaining initial access through phishing or exploited remote-desktop services, exfiltrating sensitive files before deploying encryption, and then pressuring victims with a combination of data-leak threats and distributed-denial-of-service attacks. Anubis typically sets short payment deadlines measured in days rather than weeks, then moves quickly to public shaming on their leak site when those deadlines pass.

What to do

  • Run a DoxxScan to map every link between your emails, phone numbers, usernames, and real-world identity so you can see exactly what the Mayco files may have exposed.
  • Rotate any password you used at Mayco International or any vendor tied to them, then enable two-factor authentication through an authenticator app rather than text messages.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information appears you learn within hours instead of months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often become the weakest link in these identity chains.
  • Let remediation specialists handle takedown requests for any exposed personal records that surface on data-broker or underground sites.

The Mayco International breach is a reminder that corporate ransomware attacks quickly become personal when names, addresses, and family details escape into the open. Taking concrete steps now limits how far attackers can travel down the identity chain that begins with this leak. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping that connects online handles to real identities, and hands-on remediation by specialists who manage takedowns for you and 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 November 02, 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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