A new ransomware dubbed"Petya" started spreading across Europe on Tuesday,
affecting businesses and governments that weren't sufficiently protected.
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When Petya swept across the world in June,
it seemed to have originated in Ukraine, where Russian operatives used it in some sort of science-fiction cyberwar.
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But Despite Petya's status as the most substantial hack on public infrastructure in 2017,
it might have been an accident- at least as a means to extract ransom payments from victims.
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The Petya attack makes use of the same security
vulnerability in Windows machines- a U.S. National Security Agency-discovered exploit that was stolen and leaked by a hacking group known as the Shadow Brokers- that allowed the spread of the WannaCry ransomware attack that hit hundreds of thousands of machines in more than 150 countries last month.