Re: "needs to be encrypted in order to ensure that it is private"
Even then, you're never sure it cannot be intercepted and decrypted by someone with the means to do it.
That used to be an issue only for big corp, those who had commercial "enemies" with pockets deep enough to support the costs of decryption of the day. These days, those with the means don't necessarily need to have the motive. When governments are listening to everybody by default, it's no longer a question of motive.
On top of that, PCs are more powerful than ever, meaning encryption needs longer keys to remain an efficient barrier.