Not only could you check which data is going where on your own device, the journalists behind this reporting did in fact do this with a Blackberry for their pre

Not only could you check which data is going where on your own device, the journalists behind this reporting did in fact do this with a Blackberry for their previous story: https://twitter.com/laforgia_/status/1003619319736143872 https://twitter.com/laforgia_/status/1003619319736143872 They sniffed the network access of the Blackberry as they logged into Facebook via the built-in support, saw it pulling down a bunch of information direct from Facebook to the local device and nothing else, and wrote it up as though it were somehow scandalous and a breach of privacy that Facebook didn't see this as giving a third party access to that information. They didn't let the fact that they knew the third party wasn't receiving that data get in the way of fearmongering then, and I doubt they would here either.