“One interesting thing we learned from Snowden: ‘Encryption works,’” writes Jon Evans, explaining your various options for encrypting email, instant messaging and phone calls at Techcrunch:
Everyone is worried about the wrong things. Since Edward Snowden exposed the incipient NSA panopticon, the civil libertarians are worried that their Internet conversations and phone metadata are being tracked; the national-security conservatives claim to be worried that terrorists will start hiding their tracks; but both sides should really be worried about different things entirely.
Online surveillance is the one kind that can actually be stopped. One interesting thing we learned from Snowden: “Encryption works.” Right now almost all Internet traffic is completely unencrypted, or badly encrypted, or only encrypted until it reaches the first set of servers, or your host encrypts all data with the same key. But these are all, in theory, solvable problems.
If we don’t want governments (or anyone else) spying on our Internet traffic and our phone conversations, then we can stop them from doing so.