DEAD RECKONING

Sandworm Turned Off the Lights: What the 2015 Ukraine Power Grid Attack Still Teaches Us

On December 23, 2015, roughly 230,000 people in western Ukraine lost power in the middle of winter. It wasn't a storm. It wasn't equipment failure. It was a cyberattack — the first publicly c

Mar 31, 2026 8 min read Brenda Suarez

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DNP3: The Protocol Keeping the Lights On — And Why That's a Security Problem

Every time you flip a light switch, there's a good chance a protocol called DNP3 is involved in making that happen.

Mar 25, 2026 6 min read protocols

What Programming First Responder Radios Taught Me About ICS Security

Most people who write about ICS/OT security have never touched the equipment they're defending. I have. For years,

Mar 19, 2026 3 min read