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CYBER-ATTACKS on a nation’s military and commercial computers have grown a lot more sophisticated since the days of the lone hacker targeting a system’s defences just for the thrill of it.

Nowadays, electronic attacks are increasingly seen as a cheap and easy way for one nation to attack another. “It’s the ultimate bargain hunter’s way of destroying everyone’s way of life,” says Glenn Zimmerman, a cyberspace specialist at the Pentagon. “It may even be free.”

“It’s the ultimate bargain hunter’s way of destroying everyone’s way of life. It may even be free”…

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