Worm virus could brind down US power grid

The idea of hackers bringing down the entire US power grid is scary. Most people think that this scenario strictly belongs in sci-fi movies and that it couldn’t happen, but according to security analysts, the threat is real. The threat is a real possibility due to the use of smart grids involving two million devices, which are largely wireless, sending data back and forth between power stations and homes.

http://www.slipperybrick.com/2009/03/worm-virus-could-bring-down-us-power-grid/