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How WannaCry caused global panic but failed to turn much of a profit

The weak impact is because this is a different type of ransomware

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Bill Buchanan | The Conversation
The recent WannaCry cyber-attack led to panic across the globe, showing just how important it is for organisations to have secure operating systems. This was not even the most sophisticated malware around. Numerous networks could easily cope with it and it largely hit legacy operating systems such as Windows XP.
In most corporate infrastructures, there would be no sign of Windows XP – and it seems unbelievable from a security perspective that the national health service of an advanced economy like the UK would run its critical infrastructure on such an unsafe, antiquated

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