Encryption and the Bad Guys
I have to wonder if it wasn't the fault of the Security Services (oxymoron there perhaps) that decided that they needed to snoop on everyone even if it was just 'Auntie Flow telling Cousing Jayne that her Toy Boy was only afer her pension' instead of just the bad guys that brought this 'we need to encrypt everything' move by the likes of Apple, Google and many others.
Before this you could have been reasonably sure that only those with something to hide used encrypted messages. Now, more and more people are making the decision to keep what they do away from the 5-Eyes spooks.
sorry spooks, you may have brought this on yourselves.
They only have so many of these, therefore it stands to reason that they can't send one after everyone who makes life hard for the NSA etc.