This week, companies across at least 64 countries fell victim to a cyberattack attack known as Petya, which encrypted the hard drives of more than 2,000 victims. Making matters worse is the fact that it exploited the same security flaw that enabled the ransomware WannaCry to infect more than 300,000 PCs around the globe in May, meaning that it likely could have been avoided had companies patched their machines.

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