Windows XP computers were mostly immune to WannaCry

Windows XP isn’t as vulnerable to the WannaCry ransomware as many assumed, according to a new report from Kryptos research. The company’s researchers found that XP computers hit with the most common WannaCry attack tended to simply crash without successfully installing or spreading the ransomware. If true, the result would undercut much of the early reporting on Windows XP’s role in spreading the globe-spanning ransomware.

The core of WannaCry is a vulnerability in a Windows file-sharing system called SMB, which allowed WannaCry to spread quickly across vulnerable systems with no user interaction. But when Kryptos researchers targeted an XP computer with the malware in a lab setting, they found that the computers either failed to install...

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