Facebook adds PGP encryption to keep emails safe from hackers

Facebook <http://mashable.com/category/facebook/> is adding the ability to
upload an encryption key to your profile to prevent hackers from snooping
on your notification emails.

Notification emails from the company often include the content of the
message; encryption would turn those messages to gibberish for
sophisticated third parties. The ability to add OpenPGP public keys
<https://www.facebook.com/notes/protecting-the-graph/securing-email-communications-from-facebook/1611941762379302>
 to profiles is rolling out on Monday.
http://mashable.com/2015/06/01/facebook-pgp-encryption-emails/