Conspiracy theorists reckon the big power blackout in the U.S. Northeast and part of Canada may have been caused by the Blaster worm. Here’s Robert X. Cringely from InfoWorld: “Many plants on the grid run a Windows-based SCADA (Supervisory Control and Data Acquisition) system that receives remote commands through the same RPC (Remote Procedure Call) protocol exploited by MSBlaster. Among other things, SCADA systems control the amount of energy each plant produces.”