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BM Catalysts bmcatalysts.co.uk

Claimed by Alphalocker · listed 2 years ago

100 GB
Data size
29m
Age
since listed · data leaked

Status timeline

  1. ListedFeb 14, 2024
  2. Data leakeddate unknown

At a glance

Group
Alphalocker
Status
Data leaked
Country
United Kingdom
Sector
Manufacturing
Listed on leak site
Feb 14, 2024
Data size
100 GB

About the victim

AI dossier — public-source company profile

BM Catalysts is Europe's leading independent manufacturer of aftermarket catalytic converters, diesel particulate filters (DPFs), and front pipes for the automotive aftermarket. Based in Mansfield, Nottinghamshire, the company supplies parts to mechanics and distributors across multiple European markets and emphasizes quality manufacturing and customer support.

Industry
Automotive Aftermarket - Emissions Control Products
Address
Reed Mill, Sheepbridge Lane, Mansfield, Nottinghamshire NG18 5DL, United Kingdom

Attack summary

Severity: high — Confirmed exfiltration of sensitive business data (accounting, HR, projects) at significant scale (100 GB) with published disclosure. HR data typically contains PII; accounting and project data represent material business information. Manufacturing company with established operations.

Alphalocker claims to have exfiltrated approximately 100 GB of company data including accounting records, projects, and HR information. The group has published the data and threatened further uploads.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • accounting records
  • projects documentation
  • HR information

What the group claims

BM Catalysts is the largest independent manufacturer of high-quality aftermarket catalytic converters, DPFs and front pipes in Europethe accounting.+ projects+ hr info and etc stolen and will be uploaded~100 GB docs

Sources

Source

Indexed 2 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Alphalocker

Alphalocker is a relatively new ransomware group that emerged in January 2024, operating with apparent financial motivations based on their targeting patterns across multiple sectors and countries. The group's origin and affiliations remain unclear due to limited public documentation from major threat intelligence sources, though their global targeting suggests a sophisticated operation. With 31 documented victims primarily concentrated in the United States, United Kingdom, Thailand, Brazil, and Italy, Alphalocker appears to focus on business services, technology, manufacturing, and healthcare sectors, indicating they likely seek targets with both valuable data and the financial capacity to pay ransoms. The group's attack methodology, encryption techniques, and specific tactics have not been extensively documented by major security researchers or government agencies, suggesting either operational security measures that limit visibility into their methods or their relative novelty in the threat landscape. Given the limited public reporting on notable campaigns or high-profile attacks, Alphalocker appears to operate below the radar of major law enforcement initiatives that typically target more established ransomware operations. The group remains active as of available intelligence, though the lack of comprehensive public analysis from established threat intelligence firms suggests they may be a smaller-scale operation or one that has successfully maintained a lower profile compared to more notorious ransomware families. The group has been linked to 61 public disclosures across our corpus. First observed on a leak site on January 24, 2024; most recent post May 30, 2026. The operation is currently active.

Also tracked as: Alpha Ransomware.

Timeline of this disclosure

  • February 14, 2024BM Catalysts bmcatalysts.co.uk listed by Alphalockeron the group's public leak site
Data size
100 GB

Other recent disclosures by Alphalocker

Alphalocker has been linked to 61 public victims on Darkfield. A sample of the most recent:

See the full Alphalocker dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,681 disclosures indexed across all operators we track. Geographically, BM Catalysts bmcatalysts.co.uk is reported in United Kingdom, a country with 1,217 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Alphalocker means BM Catalysts bmcatalysts.co.uk appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, NCSC (United Kingdom), as required for your jurisdiction.
  • Monitor for the data appearing on Alphalocker's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.