Privacy
My internet searches are being shown on my brothers iPhone Facebook account How can I stop this?
iPad Air, iPadOS 15
Question marked as
Your brother should not be seeing anything you do unless you are sharing an Apple ID or you have specifically allowed him access to things. Those would only be things like photos and not Internet searches. if you are sharing an Apple ID, one of you needs to get your own:
Click here to see how to 'Create a new Apple ID' = create an Apple Account. --> How to create a new Apple ID - Apple Support
Note that even if you do share an Apple ID I do not know how your or anybody's searches would appear on a Facebook account. There isn't a direct interface between an Apple ID and Facebook as such that I know of (I actually do not have a Facebook account). I think he would have to be posting them there or actively using some feature to share them.
Note that some third party (nothing to do with Apple) web browsers offer syncing services and even if you do have separate Apple IDs, if you were sharing one of those then he may be seeing your searches that way. One of those may offer a Facebook syncing or sharing service.