[sfotm]

>It felt like a loss of control when I learned recently that facebook uses a loophole to exchange data with Whatsapp... https://medium.com/@gzanon/no-end-to-end-encryption-does-not....

That's not what the article is saying - the linked article says that there may be a way for Facebook to do this, but there is no proof that they are. That still leaves room to say that maybe there should be user controls against these app extensions, though.