by Molly Wood
"Security experts say email is a lot more like a postcard than a letter inside an envelope, and almost anyone can read it while the note is in transit.
"One promising new encryption tool is Virtru, a feature that can be added to Chrome and Firefox browsers or installed on the Mail program on the Mac and for Outlook on Windows. One of Virtru’s big selling points is that it works with web-mail services like Gmail, Yahoo and Hotmail. There are also apps for iOS and Android."