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high severity March 08, 2023 · 4 min read Unverified claim — what this is

Macomb Group Listed by blackbasta Ransomware Group

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

Welcome to The Macomb Group! We’re proud to be a leading wholesale distributor of pipe, valves and fittings for the Midwest region and beyond.Founded in 1977 and acquired by the current owners in 1991, The Macomb Group has differentiated itself from competitors by continually expanding our operations to provide unbeatable specialty services, a huge inventory, energy-efficient solutions, and exceptional customer service.We pride ourselves on being a family and friend oriented business which started long before 1991. Our CEO Bill McGivern and Executive Vice President Keith Schatko first met whil

— 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.
Macomb Group Listed by blackbasta Ransomware Group

On March 08, 2023, wholesale distributor The Macomb Group appeared on the leak site operated by the Black Basta ransomware group. The listing states that internal files were exfiltrated during a ransomware attack. The company, which supplies pipe, valves, and fittings across the Midwest, has not publicly quantified how many customer, vendor, or employee records may have been taken.

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Primary Disclosure Details

The Black Basta leak site listing for Macomb Group confirms that attackers gained access to the company’s network, encrypted systems, and removed a volume of internal files. The disclosure does not specify the exact data types exposed, the number of records involved, or any ransom amount demanded. It simply lists the company name alongside a partial description of its business and a note that files have been downloaded. As is typical with these portals, the group threatens to publish the stolen data if their demands are not met. No customer notification letter from Macomb Group has surfaced that adds further detail, leaving the full scope of the breach unknown to the public.

Why This Matters for You and Your Family

If you have ever done business with The Macomb Group—whether as a contractor, supplier, employee, or customer—your information may now sit in an attacker’s archive. Internal files from a distributor like this frequently contain names, addresses, phone numbers, email accounts, payment details, and employee tax documents. Once that material reaches underground forums or is sold in batches, it becomes raw material for identity theft, loan fraud, and targeted phishing. Even if you cannot remember interacting with the company, family members or shared household accounts could be linked through a single reused email or phone number. The breach therefore creates silent risk that can surface months or years later when criminals piece together enough fragments to impersonate you.

Doxxing and Identity-Chain Risks

Ransomware operators rarely stop at one dataset. A single leaked spreadsheet can connect your work email to personal accounts, reveal family member names, or expose vendor relationships that lead to further breaches. These linkages form what threat analysts call an identity chain: one handle or phone number leads to the next until a complete profile emerges. Criminals then use that profile for account takeovers on retail sites, gaming platforms, or financial services. Children’s gaming accounts are especially vulnerable because they often share the same household email or phone that appears in business records. A credential leak from a supplier like Macomb Group can therefore cascade into doxxing that reaches every member of the household.

Black Basta’s Known Track Record

Public reporting attributes the first Black Basta activity to early 2022. The group rapidly became one of the most active ransomware operations, targeting organizations across North America and Europe. Notable prior victims include healthcare providers, manufacturers, and professional services firms. Their typical playbook begins with initial access gained through compromised remote desktop credentials or phishing, followed by lateral movement inside the network, data exfiltration, and deployment of ransomware that encrypts both Windows and Linux systems. After encryption they post samples on their leak site and pressure victims with deadlines, often threatening to sell or auction the data if payment is not received. The Macomb Group listing fits this pattern exactly.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, then use the cleanup to remove what you can.
  • Rotate any password you ever used at The Macomb Group or its vendor portals anywhere else it is reused, and switch to 2FA through an authenticator app rather than text messages.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your data is caught in hours, not months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts that often chain back to the same address or email.
  • Let remediation specialists handle ongoing takedown requests across data brokers and extortion sites on your behalf.

The Macomb Group breach is a reminder that even regional suppliers can become gateways to personal exposure when ransomware groups strike. Acting quickly on the credentials and linkages you control limits how far attackers can travel down your identity chain. 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 household coverage that includes children’s gaming accounts. Start your DoxxScan trial today and close the gaps before the next leak appears.

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 March 08, 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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