high severity November 06, 2024 · 3 min read Unverified claim — what this is

Jomar Electrical Contractors Listed by Medusa Ransomware Group

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

Jomar Electrical Contractors the company is engaged in the construction of electrical systems in the commercial construction industry. Jomar corporate office is located in 770 N Sam Houston Pkwy E, Houston, Texas, 77060, United States and has 306 employees. The total amount of data leakage is 797.2 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.

Jomar Electrical Contractors Listed by Medusa Ransomware Group

On November 6, 2024, Jomar Electrical Contractors appeared on the Medusa ransomware group’s leak site. The Houston-based firm, which specializes in commercial electrical systems and employs 306 people, had 797.2 GB of internal files exfiltrated. Anyone whose personal or employment records passed through the company’s systems may now face long-term exposure.

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Details from the Leak Site

The Medusa listing states that Jomar Electrical Contractors suffered a ransomware attack in which attackers exfiltrated internal files before encryption. The disclosure does not specify exactly which data types were taken, nor does it list the number of individuals affected. It simply states that 797.2 GB of company data was removed and is now held by the group. The primary source, hosted on the Medusa onion site and mirrored by ransomware.live, provides no further breakdown of the contents.

Why This Matters for You and Your Family

When a company like Jomar loses control of internal files, the information often includes employee names, addresses, Social Security numbers, payroll details, tax forms, and vendor contracts. If you or a family member ever worked at Jomar, submitted an application, or appeared in their subcontractor records, your personal data may be sitting inside that 797.2 GB archive. Even if the leak site does not publish every file publicly, extortion groups frequently release samples or sell the full set on underground markets, turning a corporate breach into a direct threat to household privacy.

Doxxing and Identity-Chain Risks

Exfiltrated internal files frequently contain spreadsheets that link employee emails, phone numbers, dates of birth, and physical addresses. Attackers and data brokers can combine these records with usernames discovered in the same dataset, creating detailed identity chains. A single leaked work email can lead to gaming accounts, social-media profiles, and family photos. These chains accelerate doxxing, SIM-swapping attempts, and targeted phishing. Credential leaks of this nature routinely cascade into account takeovers, especially for shared family passwords or children’s online profiles that reuse corporate-adjacent details.

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Found in breach recordsverifiedreported — unverified

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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 Medusa · 515 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed November 06, 2024

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.

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Medusa — 515 incidents tracked

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