Google Threat Intelligence identified Coruna, a sophisticated iOS exploit kit leveraging 23 vulnerabilities across five complete exploit chains to silently install malware via drive-by web delivery. Former L3Harris Trenchant employees confirmed the toolkit originated within the US defense contractor's offensive cyber division before being sold to Russian intelligence, which has deployed it against targets in Ukraine. Organizations should enforce iOS Lockdown Mode on high-risk devices, deploy mobile threat defense tooling, and immediately ingest Google's published IOCs.