And companies designing/encrptying them to the point that only the real user can gain access. Right now, it's gaining a lot of spotlight because of the FBI seeking what's on one of the San Bernadino shooter's phones.

"An order, signed Tuesday by a magistrate judge in Riverside, Calif., does not ask Apple to break the phone’s encryption but rather to disable the feature that wipes the data on the phone after 10 incorrect tries at entering a password. That way, the government can try to crack the password using “brute force” — attempting tens of millions of combinations without risking the deletion of the data."

Apple still refuses to do this.

On the one hand, I like that companies are looking out for our privacy (even though at the same time they're not as, by default, they allow their microphones to pick up and transmit voice data to 3rd parties so that next time you turn on your phone there's suddenly an ad for that thing you were talking about buy never googled). But on the other hand, information stored on phones can be identical to that non-digital content that used to be discoverable by search warrant.