Grupo Modesto Cerqueira
bd_f9ac08bcf3788571 · schema v1 · pii pii-v1
Full breach record for Grupo Modesto Cerqueira →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Meow 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
Grupo Modesto Cerqueira is a prominent Portuguese company specializing in the production and distribution of construction materials. Established with a focus on quality and innovation, it offers a wide range of products, including cement, concrete, and other building supplies. The company is recognized for its commitment to sustainability and customer satisfaction, serving both domestic and international markets.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Aug 31, 2024
Claim posted
—
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.
meow
According to ransomware.live, Meow emerged in 2022 (resurfacing aggressively in 2024), initially operating as a RaaS using the Conti v2 codebase before transitioning to a data-extortion-only model — selling stolen data rather than encrypting files — with a heavy focus on US healthcare and medical research organizations.