(Bloomberg) -- The cyberattack that has hit businesses and governments across Europe, Latin America and Asia is similar to last month’s WannaCry attack in more ways than simply the method used to spread across computer networks. Like WannaCry, this attack looks like ransomware, but probably isn’t, security experts say.

Ransomware encrypts data on an affected computer. The hacker then extorts money from the computer’s owner -- usually in bitcoin -- for a decryption key. WannaCry and this most recent attack did the same, but in this case it encrypted an infected machine in a way that makes decryption difficult, Samani says. “It is there to be disruptive.”

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