Centre Ophtalmologique dErmont
thegentlemenThis record tracks a ransomware attack claimed by the thegentlemen group against Centre Ophtalmologique dErmont. 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
***.com Centre Ophtalmologique d'Ermont, a specialized medical clinic in France dedicated to comprehensive eye care. The facility provides a full spectrum of ophthalmology services, including routine consultations, advanced diagnostics, and surgical treatments for various ocular conditions. The portal serves as a convenient hub where patients can access health information, manage their appointments, and connect with a team of expert specialists
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.