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The next world war might not start with a bang, but with a blackout. An enemy could send a few lines of code to control computers at key power plants, causing equipment to overheat and melt down, plunging sectors of the U.S. and Canadian grid into darkness. Trains could roll to a stop on their tracks, while airport landing lights wink out and the few traffic lights that remain active blink at random.

In the silence and darkness, citizens may panic, or they may just sit tight and wait for it all to reboot. Either way, much of the country would be blind and unresponsive to outside events. And that might be the enemy's objective: Divert America's attention while mounting an offensive against another country…

Read full story: Popular Mechanics

Related topics: Cyberattack, Cybercrime, Security