City of Urbana
qilinThis record tracks a ransomware attack claimed by the qilin group against City of Urbana. 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
City of Urbana was named by the qilin ransomware group as a targeted organization. It operates in the Public Sector sector. The affected entity is based in United States. The incident was first observed on December 03, 2025. Breach House tracks this attack from public ransomware leak-site postings for threat-intelligence purposes.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.