Santa Casa de Assis
thegentlemenThis record tracks a ransomware attack claimed by the thegentlemen group against Santa Casa de Assis. 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
www.santacasadeassis.org.br https://www.zoominfo.com/c/santa-casa-de-assis/425726597 Santa Casa de Assis is a longstanding private health care institution in Assis, São Paulo, Brazil. Founded in 1919 and now holding the CEBAS (Certificate of Beneficent Entity in Social Assistance in Health), it operates one of the region’s most complete and modern hospital complexes, offering services such as emergency care, maternity, surgical and intensive care units, advanced orthopedics, hemodynamics, laboratory diagnostics, and specialized clinics.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.