Cosan
ddosecretThis record tracks a ransomware attack claimed by the ddosecret group against Cosan. 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
Cosan is a Brazilian company that invests in and operates across essential sectors, including agribusiness, energy, gas, logistics infrastructure, fuel distribution and commercialization, and lubricants. Its portfolio includes businesses tied to energy and mobility, and company materials describe it as an asset manager focused on sectors with direct economic impact in Brazil. Public market references also describe Cosan S.A. as a Brazilian listed company with investments in energy, lubricants, logistics and infrastructure. It was listed as a ransomware victim associated with ddosecret.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.