Comment by Cthulhu_
6 years ago
Yup, that's one of the issues you'll get with interlinked accounts; in this case, Whatsapp backs up / stores photos automatically to your phone's photo gallery, and said photo gallery is automatically synchronized with the cloud.
I don't know exactly what's going on with your wife's / your father-in-law's accounts though, are they sharing Google accounts, photo albums, or were the photos shared in the same whatsapp group?
> are they sharing Google accounts, photo albums, or were the photos shared in the same whatsapp group?
None of these. They don't share any accounts. I don't share any account with my father either. Me and my wife use the shared galley feature. The photos that ended up on my fathers phone were shared by me and my wife with each other on whatsapp. I suspect either mine or my wife's gallery somehow "leaked" into my fathers even though none of the accounts have any connections AFAICT. Probably we clicked some share button somewhere accidentally but I couldn't find any shared galleries on any of our phones.