North Korean affiliates are “highly likely” to have been responsible for the WannaCry cyber attack this month that infected more than 300,000 computers worldwide, according to cyber security firm Symantec.
However, others say the flaws in the WannaCry code, its wide spread, and its demands for payment in electronic bitcoins before files are decrypted suggest that the hackers were not working for the North Korean government.
Symantec researchers said they had found multiple instances of code that had been used both in a North Korean group’s previous activity and in an earlier version of WannaCry.