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high severity October 31, 2023 · 4 min read Unverified claim — what this is

cmcsheetmetal.com Listed by blackbasta Ransomware Group

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

CMC Sheet Metal is a premier sheet metal fabrication facility located in Capitol Heights, Maryland providing the highest quality HVAC Construction Services to our clients and the industry. During that time we have preformed individual projects ranging well over thirteen million dollars. What started over 40 years ago with the idea that a full-service sheet metal contracting firm could deliver high quality and prompt service grew into one of the most respected industrial enterprises in the Washington, D.C. area. We have the experience needed to produce top results, the proof to demonstrate our

— from Blackbasta’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.
cmcsheetmetal.com Listed by blackbasta Ransomware Group

On October 31, 2023, CMC Sheet Metal of Capitol Heights, Maryland appeared on the leak site operated by the Black Basta ransomware group. The listing states that internal files were exfiltrated during a ransomware attack on the company’s systems. The number of records affected and the precise contents of the files remain unknown, as the leak-site posting does not quantify them or provide samples.

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Reported Details from the Listing

The Black Basta leak site entry for cmcsheetmetal.com states that the construction and HVAC firm suffered a ransomware incident in which attackers gained access to internal files and exfiltrated them prior to encryption. The disclosure indicates the data was taken and is now held for extortion purposes. No customer count, employee count, or specific data categories such as Social Security numbers or financial details are listed. The posting follows the group’s standard format of naming the victim, showing a partial file tree, and threatening to publish the archive unless a ransom is paid.

October 31, 2023 marks the first public disclosure of this incident through the ransomware leak site.

Why This Matters for You and Your Family

When a local business like a sheet-metal fabricator is hit, the people whose information ends up in the stolen files are often unaware they were ever in the company’s systems. If you or any member of your family has worked with CMC Sheet Metal, supplied materials, been employed there, or been a client on one of their Washington, D.C.-area HVAC projects, your personal data may now sit in an attacker-controlled archive. Even without exact record counts, the exposure of internal files typically includes employee records, vendor contracts, invoices, and correspondence that contain names, addresses, dates of birth, and financial details. Once that information leaves the company’s control, you lose the ability to limit how it spreads.

The Doxxing and Identity-Chain Risk

Stolen internal files frequently contain more than isolated records. They can link an individual’s work email to personal phone numbers, home addresses, and even references to family members. Attackers and subsequent data resellers combine these fragments with other breaches to build complete identity profiles. A single leaked invoice can tie your name to a spouse’s, a child’s school schedule, or a home address that then appears on people-search sites. These chains accelerate doxxing: once one handle is connected to your real identity, every future breach of that identity compounds the exposure. Credential leaks that surface in the same datasets can also lead to account takeovers on personal email, banking, or gaming platforms.

Black Basta’s Known Track Record

Public reporting attributes the Black Basta ransomware group’s emergence to early 2022. The operators rapidly became one of the most active double-extortion actors, breaching organizations across North America, Europe, and Australia. Notable prior victims include large manufacturers, healthcare providers, and professional-services firms. Their typical playbook begins with initial access gained through compromised credentials or exploited remote-desktop services, followed by lateral movement inside the network, data exfiltration, deployment of ransomware, and then dual extortion: demanding payment both to decrypt files and to prevent publication of the stolen data. The group maintains a leak site on the dark web and routinely updates it with new victims when negotiations fail.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, then use the cleanup of Warden to remove what you can.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information surfaces you learn within hours rather than months.
  • Rotate any password you used at cmcsheetmetal.com or related business accounts anywhere it has been reused, and switch to 2FA through an authenticator app instead of text messages.
  • Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts, which often chain back to the same address or parent email and become vectors for further takeovers.
  • Let remediation specialists handle takedown requests across data brokers and leak sites so you do not have to chase every copy of your information manually.

The exposure of CMC Sheet Metal’s internal files is a reminder that ransomware operators continue to target ordinary businesses that handle everyday personal information. Taking deliberate steps now limits how far that data can travel. Start your DoxxScan trial and let its continuous monitoring, AI-powered identity-chain mapping, and hands-on remediation specialists protect you and your family—including any gaming accounts that could otherwise become the next link in a doxxing chain.

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 October 31, 2023
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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