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Graymatter

sinobi

This record tracks a ransomware attack claimed by the sinobi group against Graymatter. 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.

117days open
t1 · Published t2 · Pending
Feb 19, 2026Not disclosed yet
Country
United Kingdom
Business Category
Retail / E-commerce
Employees
51-100
Discovered
2026-02-20
Published
February 19, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
ngtl4LUwJK68

Attack Summary

GrayMatter (graymatter.co.in) is a Bangalore-based IT company founded in 2006, specializing in data analytics, AI, and Business Intelligence (BI) with a strong focus on the airport, retail, and manufacturing sectors. Their flagship products, including Skateboard and StoreSense, deliver specialized, AI-driven insights for improved passenger experience, retail revenue, and parking management.

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
0
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
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••• emails
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••• emails
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Visit Website Original Post View Group: sinobi

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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.