Keifert
thegentlemenThis record tracks a ransomware attack claimed by the thegentlemen group against Keifert. 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
***.de zoominfo.com/c/keifert-gmbh/429980133 Keifert GmbH master-certified building cleaning company based in Schallstadt, Germany, with over 35 years of industry experience.They offer a comprehensive range of professional services, including office, industrial, and specialized cleaning, as well as janitorial services across the Southern Baden region.As a quality-focused enterprise, the company is certified according to DIN EN ISO 9001 and 14001 standards, ensuring reliable and environmentally conscious solutions for their clients
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.