Grupo Modesto Cerqueira
meowThis record tracks a ransomware attack claimed by the meow group against Grupo Modesto Cerqueira. 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 GAPWindow 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.
Attack Summary
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.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.