Mayo Clinic (USA)
0aptThis record tracks a ransomware attack claimed by the 0apt group against Mayo Clinic (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
Mayo Clinic is a private American academic medical center focused on integrated healthcare, education, and research, with major campuses in Rochester, Minnesota; Jacksonville, Florida; and Phoenix/Scottsdale, Arizona. It maintains a nonprofit hospital system offering comprehensive medical specialties and virtual care 24/7 through its patient portal. The organization serves patients from over 130 countries with world-class expertise in diagnosing and treating complex medical challenges. Mayo Clinic was neutrally listed as a ransomware victim associated with the threat actor 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.