The ransomware attack known as WannaCry first struck on Friday, May 12, 2017, and by the following Monday, it had reached more than 200,000 computers in 150 countries. Although we still don't know all the details, it's clear that some organizations were victimized far more severely than others. The news of this episode reinforces a view that we at PwC have promoted for a long time: Effective protection against cyber-attacks has less to do with any particular technological factor, and everything to do with proactive risk management in general.
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