high severity February 15, 2023 · 3 min read Unverified claim — what this is

semsinc.net Listed by lockbit3 Ransomware Group

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

SEMS is a regional environmental management firm with a national reach. Our decades of experience have positioned us to help you navigate complex projects in highly regulated industries. Our team has the training, experience, and expertise to deliver...
— from LockBit’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.

semsinc.net Listed by lockbit3 Ransomware Group

On February 15, 2023, environmental services company SEMS Inc. appeared on the LockBit 3.0 ransomware leak site, claiming that internal files had been exfiltrated during a ransomware attack. The listing indicates that anyone whose personal or business information passed through SEMS systems may now face heightened risk of identity theft and targeted fraud.

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Details from the Leak-Site Listing

The primary disclosure on the LockBit 3.0 portal states that SEMS Inc., a regional environmental management firm with national reach, suffered a ransomware incident in which attackers successfully exfiltrated internal files. The listing does not quantify the number of affected records, nor does it specify the exact data types beyond the general description of internal files exfiltrated. No ransom demand figure or payment deadline is published on the page. The entry was first observed on February 15, 2023, and remains accessible via ransomware leak-site aggregators.

Why This Matters for You and Your Family

When a company that handles environmental compliance, permitting, or project documentation for clients experiences a breach, the exposed internal files can contain names, addresses, dates of birth, Social Security numbers, financial details, or employee records. Even if you never directly hired SEMS, your information may have been shared by a contractor, employer, or government agency that did. Once that data leaves the company’s control, it can be sold, traded, or used to build profiles for identity theft, tax fraud, or spear-phishing campaigns aimed at you or members of your household.

Doxxing and Identity-Chain Risks

Internal files from environmental firms frequently link business identities to personal contact information, creating long identity chains. A single leaked email or phone number can be correlated with gaming accounts, social-media handles, and family-member records. Attackers then use these connections to impersonate you, reset passwords on linked services, or publish doxxing packages that expose your home address and children’s names. Credential leaks like this one cascade into account takeovers that reach far beyond the original breach.

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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

Attributed to LockBit · 3412 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed February 15, 2023

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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LockBit — 3412 incidents tracked

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