Can your ios from Facebook still be on your iphone after you have deleted everything off there?

My friend had an iPhone 4s she sold it and the other day while I was on Facebook on my notifications it said that she posted an ios photo but when I went to it, it was the person picture she sold it to. My friend says she made sure everything was deleted and do not see how it is possible that someone else picture popped up on her Facebook page as an ios picture and when she deleted everything she was logged out of Facebook.

It depends on if she still had her login information on the IPhone/Program. It is also possible if she ever accessed Facebook on the web instead of the program and accidently had it auto fill user name and password still on it. What she should of done is set the phone back to factory default which would of formatted the phone. What she should do now is change her password on her Facebook account immediately.

Its Very Possible She Should Change Her Password Once She Does That it Will Immediately Sign Her Out of Any Other Areas Of Where Her Account is Signed Into Including The Iphone

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