Petrochemical companies were hit by a series of cyberassaults last year. The worst of them, against a widely used safety system, could have set off an explosion. http://ift.tt/2Dthywk The New York Times Petrochemical companies were hit by a series of cyberassaults last year. The worst of them, against a widely used safety system, could have set off an explosion. http://ift.tt/2tKONLK Petrochemical companies were hit by a series of cyberassaults last year. The worst of them, against a widely used safety system, could have set off an explosion.By NICOLE PERLROTH and CLIFFORD KRAUSS from NYT Technology http://ift.tt/2tKONLK
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