Castles Technology UK & Ireland
qilinThis record tracks a ransomware attack claimed by the qilin group against Castles Technology UK & Ireland. 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
Castles Technology UK & Ireland was named by the qilin ransomware group as a targeted organization. It operates in the IT sector. The affected entity is based in United Kingdom. The incident was first observed on February 11, 2026. The entry is documented by Breach House from public leak-site sources and is provided for situational awareness only.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.