They are becoming more sophisticated and reaching more people than ever.
The attack has caused havoc in Russia, Ukraine and the United States.
Kacper Pempel / Reuters
Technical staff scrambled on Sunday to patch computers and restore infected ones, amid fears that the ransomware worm that stopped car factories, hospitals, shops and schools could wreak fresh havoc o...
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Up to two more companies could be at risk.
BOSTON (Reuters) - Apple Inc. customers were targeted by hackers over the weekend in the first campaign against Macintosh computers using a pernicious type of software known as ransomware, researchers...