Any approved encryption scheme
Can be read by governments at will. To them it is a minor inconvenience.
Facebook is finally deploying secure browsing for its 1-billion-strong userbase over the coming weeks. It confirmed the move on its developers' blog last week: As announced last year, we are moving to HTTPS for all users. This week, we're starting to roll out HTTPS for all North America users and will be soon rolling out to …
Supposedly, if the insane CCDP plan were to go ahead, all encrypted traffic will be decrypted by black boxes supplied by GCHQ.
That means GCHQ would have access to the content of *all* UK interactions with Facebook.
Or none at all. Depending on who you believe.
If you set them to private...? If you send a DM? Not all Twitter interactions are public. And even the public tweets would require a system allowing uk.gov to either cache the lot or target users under their jurisdiction only. The former would mean a LOT of noise, the latter would require Twitter's co-operation. Something I don't see them doing without a law or court order making them.
So it *seems* the IMP can't even target one of the more public social platforms properly, unless the AC in the 1sr comment is correct.