Kaiser Permanente (USA)
0aptThis record tracks a ransomware attack claimed by the 0apt group against Kaiser Permanente (USA). 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
Kaiser Permanente is a US-based integrated healthcare organization headquartered in Oakland, California, serving members through health plan coverage, hospitals, and affiliated medical groups. Its model combines medical services and insurance coverage across multiple states, with care that includes preventive, primary, specialty, and hospital services. The organization operates as a major provider in the healthcare sector and supports patients through coordinated clinical and coverage offerings. In threat-intelligence indexing, Kaiser Permanente (USA) was listed as a ransomware victim associated with 0apt.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.