Hanover County Public Schools (Virginia) confirmed a cybersecurity incident in March 2026 causing widespread internet and system disruption consistent with ransomware or network-level intrusion patterns, though no threat actor, malware family, attack vector, or data exposure scope has been publicly confirmed. The primary risk for external organizations is third-party and supply chain exposure: entities sharing infrastructure, data, or managed services with HCPS should audit those connections and monitor for HCPS-specific IOCs if and when they are released. All technical details remain unconfirmed; this entry requires reassessment as the investigation and disclosure progress.