YMCA
quantumThis record tracks a ransomware attack claimed by the quantum group against YMCA. 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
YMCA of the USA is a nonprofit organization based in the United States that supports community well-being through youth development, healthy living, and social responsibility programs. Its network of local Ys offers fitness, swim, child care, camp, and health-focused services, including community-based wellness initiatives. The organization also partners with insurers and health providers to expand access to YMCA memberships and preventive care resources. It was listed as a ransomware victim associated with quantum.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.