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What is ransomware? Ransomware is a particularly vicious type of malware that infects your computer, blocks you from accessing your data, and demands a ransom in order to regain control of your files. Typically, ransomware will encrypt all of the files and then post a message that promises to decrypt the files if the ransom is paid … or destroy them if not. What is WannaCry? WannaCry is a piece of ransomware that is also known as WannaCrypt (as well as WanaCrypt0r 2.0, Wanna Decryptor 2.0, WCry 2, WannaCry 2 and Wanna Decryptor 2). What it's called isn't as important as what it does.What's been so devastating about WannaCry is how quickly it spread. Leveraging a vulnerability in Windows with the worm-like exploit called EternalBlue (which originated with the USA's National Security Agency, but was made public by the Shadow Brokers hacking group), WannaCry exploits a flaw in Microsoft's network file sharing protocol. It seeks out other vulnerable computers on the network to infect, which allows it to spread at an exponential rate.The ransom for WannaCry starts at $300 in Bitcoin (the untraceable online crypto-currency), but as time goes on the amount required to unlock your files increases. (With more than 200,000 computers infected, that potentially represents $60 million in ill-gotten gains.)
