SYNful Knock malware

If you think only “zero-days” change the game, here’s a wake-up call: a patched, six-year-old Cisco bug is helping a Russian intelligence unit burrow into enterprise networks across the globe. Not in ones or twos—at scale. The FBI and Cisco Talos warn that a sophisticated FSB-linked group—tracked as “Static Tundra,” also known as “Berserk Bear”…