Sigma
thegentlemenThis record tracks a ransomware attack claimed by the thegentlemen group against Sigma. 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.sigma.fr https://www.zoominfo.com/c/sigma/405955619 diteur de logiciels, intégrateur de solutions digitales et infogéreur de clouds hybrides : le groupe Sigma concrétise votre transformation digitale. Sigma est fière d’être l’une des toutes premières grandes entreprises du numérique à inscrire ses engagements environnementaux, sociaux et économiques dans ses statuts.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.