Top 5 Cybersecurity News

Top 5 Cybersecurity News September 25 2026 DIESEC weekly security briefing

This week’s Top 5 Cybersecurity News follows a thread that has been building across 2026: attackers are no longer trying to bypass the perimeter; they are subverting the infrastructure that maintains it. Russia’s Sandworm group deployed an updated Cyclops Blink botnet variant through Cisco’s firewall management console, turning the administrative plane into an entry point.…

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