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Mahajak Development

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Mahajak Development. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.

1day open
t1 · Published t2 · Pending
Jun 15, 2026Not disclosed yet
Country
Thailand
Business Category
Manufacturing / Engineering
Employees
+1000
Discovered
2026-06-15
Published
June 15, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
CeTiP7OznkQc

Attack Summary

***.com zoominfo.com/c/mahajak-development-co-ltd/346627274 Mahajak Development Co., Ltd. is a leading Thai technology provider established in 1971, headquartered in Bangkok. Evolving from an automotive air-conditioning distributor, they are now a premier supplier of Mitsubishi Heavy Duty climate systems, smart home automation, and professional audio-visual solutions. The company delivers comprehensive consulting, design, and installation services for commercial projects and government facilities across Thailand

Leak Screenshots

SAMPLE

Proof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
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found in Ransomware leaks
Emails exposed
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External
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Distinct leaks
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••• emails
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••• emails
Full exposure is locked
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Legal Disclaimer: This ransomware victim record reflects information published on the operator's leak site. Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.