I have genuine horror story about OneDrive. This happened to me about two years ago.
I have a shared OneDrive with my family because my Dad gets it free due to his job or something, (Yes I live with my parents but I'm not underage don't ban me pls) but nobody actually uses it.
My girlfriend and I used to send nudes to each other which were never saved and they were promptly deleted from my phone after "use". One random day I decide to open up OneDrive only to discover ITS BEEN SAVING EVERY SINGLE IMAGE I'VE EVER TAKEN, SENT AND RECEIVED. My entire SHARED OneDrive was full of my dick pics and naked gf pics.
I nuked that shit from orbit and thankfully nobody in my family ever saw it because they still don't use OneDrive. I purged that shit from phone and PC and I will never touch it ever again.