There's a few data-grabbing questions I've always wondering with Google and Facebook and others. Does the Facebook app, if granted permission to access photos,

There's a few data-grabbing questions I've always wondering with Google and Facebook and others. Does the Facebook app, if granted permission to access photos, upload thumbnails or metadata generated on-device that's descriptive-enough to characterize photos located on devices even if they're not chosen by the user to be uploaded to their service. Does Facebook and/or Google send your current clipboard contents to their server? Google Maps seems to do-so since it has the address pre-filled when you launch the app if you've copied it from elsewhere. Anybody able to officially answer or speculate on either of these? I've always resorted to assuming they do because they can.