NSA says it was not origin of ransomware that hit Microsoft's Windows

NSA says it was not origin of ransomware that hit Microsoft's Windows

A screen shot of the page computers infected with the WannaCry ransomware variant display.

Symantec later speculated the ransomware-inspired attack may be associated with the Lazarus group, which is tied to North Korea.

The NSA's reply conflicted with the account from Microsoft, whose older XP operating system was vulnerable to WannaCry.

On Sunday, the software giant said the WannaCry malware program that spread to more than 200,000 machines in 150 countries last weekend was the latest example of what happens when vulnerabilities stockpiled by organizations such as NSA escape into the virtual wild. The malware behind WannaCry was reported to have been stolen from the NSA in April.

"We have seen vulnerabilities stored by the CIA show up on WikiLeaks, and now this vulnerability stolen from the NSA has affected customers around the world," Brad Smith, Microsoft's chief legal counsel, said in a blog post. "Repeatedly, exploits in the hands of governments have leaked into the public domain and caused widespread damage."

The ransomware relies on a flaw in the Windows 10 code for which Microsoft issued a patch on March 14.



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