This is not the first time Facebook has requested super user rights. On May 8, many users also reported the occurrence of the above announcements but not as popular as this one.
The first users to receive the superuser permission dialog are from Facebook version 172.0.0.12.93 and today, the second batch appears on Facebook v172.0.0.66.93.
Some security security researchers on Android believe that this popup appears only because of a programming error. Nikolaos Chrysaidos from Avast looks at Facebook's source code and thinks that an SDK has been embedded into the Facebook application, which is WhiteOps SDK, a software development kit to detect phishing ads and implement white lists / Black. 'Perhaps they added the WhiteOps SDK and forgot to re-enforce the ROOT test function, "Chrysaidos said.
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