Castles Technology UK & Ireland

Castles Technology UK & Ireland was compromised in a ransomware attack attributed to qilin in February 2026. The organization, operating in the Technology sector in UK, was added to the group's data leak site as part of an extortion campaign.

qilin operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

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Intelligence correlations link this incident to 1 vulnerability(ies) including CVE-2026-0257, which may have been leveraged as initial access vectors or for lateral movement.