Canada's Communications Security Establishment (CSE) disclosed three foreign active cyber operations in its 2025-2026 annual report. The agency hacked fentanyl chemical brokers to disrupt their supply chain, undermined an overseas extremist group's recruitment capabilities, and rendered a ransomware-as-a-service gang's infrastructure inoperable while deleting data from its servers. CSE also conducted technical disruptions against 10 major ransomware gangs targeting Canada and defended against a phishing campaign aimed at federal government institutions. The disclosures are rare, as spy agencies seldom detail offensive cyber operations to protect their methods.
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