Cumar Marble & Granite
bd_082e06fa77728623 · schema v1 · pii pii-v2
Full breach record for Cumar Marble & Granite →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Dark Project on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
About Cumar Cumar Marble & Granite is a leading fabricator and supplier of high-quality marble, granite, limestone, and exotic stones in New England, specializing in luxury kitchens, bathrooms, and custom projects. The company caters to designers, architects, developers, and discerning homeowners, offering a wide range of custom stone products including countertops, sinks, and fireplaces. Their extensive inventory features various natural stones from around the world, ensuring elegance and durability in every project. Cumar is recognized for its commitment to quality and craftsmanship, making it the preferred choice for luxury stone solutions. Cumar Marble & Granite, a company specializing in luxury kitchens, bathrooms, and custom projects, has been the target of a massive cyberattack. Hackers stole 489 gigabytes of data from the company’s servers, including personal information, technical drawings, and financial documents. This incident raises serious concerns regarding the theft of intellectual property and potential breaches of employee and customer privacy.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Sep 11, 2026
Claim posted
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No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
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Compliance clock
Not assessable
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.