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.
4days open
t1 · Published
t2 · Pending
Business Category
Manufacturing / Engineering
Disclosed / Notified
Not disclosed yet
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.
Dark Web Exposure
Findings for mahajak.com
— indexed by HaveIBeenRansom.
176
found in Infostealer logs
635+
found in Traditional breaches
13+
found in Ransomware leaks
MalindoAir_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
MalindoAir_BF.7z
TheUnderground - Reborn · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
LuminPDF_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
udemy.com.zip
Database World ROC · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 17 more leak sources locked
Leak volumes are 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.