The first episode in MOTHERBOARD’s Phreaked Out series on hacking information systems. This first episode is about 2 guys, Kartik Patel and Gabriel Murillo, who hacked into LA’s transportation network system and changed the light sequence at 4 major LA intersections, causing city gridlock that lasted up to 3 days. It’s the first time I’ve heard of this, but it seems like a serious vulnerability and accountability issue for any public transportation or information system.