Colorado Health Network Inc
cephalus-apiThis record tracks a ransomware attack claimed by the cephalus-api group against Colorado Health Network Inc. 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
Colorado Health Network is a statewide healthcare organization in the United States, specifically operating across Colorado with multiple clinics in Denver, Fort Collins, Greeley, Colorado Springs, Pueblo, and Grand Junction. The entity provides integrative medical care, oral health services, and behavioral health support through in-person visits and telehealth, with a notable focus on HIV prevention, treatment, and harm reduction for over 5,250 individuals. It delivers holistic care including case management, substance abuse counseling referrals, and access to healthcare, equitably meeting the needs of people affected by HIV and other health conditions. Colorado Health Network was listed as a ransomware victim associated with cephalus-api.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.