Shared safari history
HI
i found on my iPhone 4s , on safari history many adult sites saved in the history that I didn't recognize , I've never visited any of these sites , no one has an access to my phone , but I shared my Apple ID with someone , so could he browsing these sites and his safari history is shared on my mobile , I know that safari does not share history on your devices so what's the reasonable answer to this
iPhone 4S, iOS 7.1.2