NPR: Cracking The Code: Just How Does Encrypted Email Work?

NPR: Cracking The Code: Just How Does Encrypted Email Work? by NPR Staff:

If the past few months have taught us anything, it’s that everything we do online leaves a digital trail. While it may seem like there’s not much we can do about it, there are some tech companies that are working to obscure that trail a little bit, with a process known as encryption.