Censys researchers found 5,219 exposed Rockwell PLCs online, mostly in the U.S., urging defenders to secure or disconnect them. On April 7, 2026, U.S. agencies, including FBI, CISA, and NSA, warned of Iran-linked APTs exploiting internet-exposed Rockwell Automation PLCs. Threat actors are carrying out cyberattacks targeting internet-connected operational technology (OT) across multiple critical infrastructure sectors.…
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What happens when cybersecurity knowledge walks out the door
In this Help Net Security interview, Andrew Northern, Principal Security Researcher at Censys, explains why mentorship matters and what organizations risk losing when senior staff disengage. He argues that institutional memory and judgment under pressure are difficult to rebuild once they disappear. Northern also pushes back on the idea that mentoring makes someone replaceable, saying…