Stago
ransomexxThis record tracks a ransomware attack claimed by the ransomexx group against Stago. 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
Stago is a world-leading diagnostics company founded in 1945 in France, specializing in hemostasis and coagulation testing for blood analysis. Headquartered in Paris, the privately-owned firm develops automated systems for blood coagulation and exports over 90% of its French-made production globally. With R&D and production centers in the USA, Netherlands, Germany, Ireland, and China, Stago serves healthcare sectors worldwide through its advanced diagnostic offerings. The company was listed as a ransomware victim associated with the threat actor ransomexx.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.