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Tag: implanted

US, UK agencies warn hackers were hiding on Cisco firewalls long after patches were applied

A state-sponsored hacking group has implanted a custom backdoor on Cisco network security devices that can survive firmware updates and standard reboots, U.S. and British cybersecurity authorities disclosed Thursday, marking a significant escalation in a campaign that has targeted government and critical infrastructure networks since at least late 2025. The Cybersecurity and Infrastructure Security Agency…