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Multistack

blackbyte

This record tracks a ransomware attack claimed by the blackbyte group against Multistack. 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.

1096days open
t1 · Published t2 · Pending
Jun 16, 2023Not disclosed yet
Country
Business Category
Energy
Employees
101-1000
Discovered
2023-06-16
Published
June 16, 2023
Disclosed / Notified
Not disclosed yet
Victim ID
de6GKBAJHH9z

Attack Summary

At Multistack, we recognize and respect the importance of providing HVAC solutions that promote energy and water efficiency, utilize the best refrigerant choices available, and embrace the transition from fossil fuels to electrification.Water and air-cooled MagLev® chiller platforms achieve superb efficiency across their full range of operation. Our unique MagLev chiller design and unrivalled Transitional Efficiency? chiller control algorithms deliver outstanding part-load performance at all condenser-water or ambient temperature conditions. MagLev also offers refrigerant choices recognized worldwide safer for the environment: R1234ze, R-513, and R515B.Our modular product’s design allows you the freedom to use just enough energy to meet your current needs, while offering you the flexibility of incorporating additional modules as your operations grow. Minimizing embodied energy is an important design focus and we pride ourselves that our modular chillers deliver the industry’s highest cooling and heating output per pound. If you’re looking to cool and heat your building with as little environmental impact as possible, look no further than Multistack!

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

Findings for multistack.com — indexed by HaveIBeenRansom.
6
found in Infostealer logs
626+
found in Traditional breaches
47+
found in Ransomware leaks
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VerificationsIO_BF.7z.011
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••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
Arandell Corp
medusa · ransomware
••• emails
UnderArmour_BF_.7z.001
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 17 more leak sources 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.