Attack sparks debate on when spy agencies should disclose cyber holes

WannaCry ransomware

The massive WannaCry ransomware attack has garnered a lot of attention. Researchers say this type of ransomware will continue. While this particular ransomware was inadvertently stopped, hackers could modify the code and try again. Mark Mager, senior researcher at security firm Endgame, said it's the most prevalent and effective example of ransomware worming through networks around the world.

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