A global wave of email-borne worms hit industrial control systems (ICS) in the fourth quarter of 2025, marking one of the most concerning threat shifts seen across operational technology (OT) environments in recent years. The surge was largely tied to a single piece of malware that silently spread through phishing emails, reaching ICS networks in […] The post Email-Borne Worm Surge Drives New Threat Wave Across Industrial Control Systems appeared first on Cyber Security News.