Since we now know that we can’t reasonably expect the emails we exchange with friends and colleagues to not be warehoused and read without our knowledge (and without a subpoena, warrant, or similar from the reading party), I want to shine a spotlight on one of the still-effective techniques available for restoring some privacy (with caveats) to personal email. This strategy is not new. In fact, it’s quite old. I’m talking about GnuGP(GPG), a FOSS implementation of the OpenPGP encryption standard, and GPGMail, an awesome plugin for the native Mac Mail client.