Silent Circle, co-founded by email security guru Phil Zimmermann, has pulled out of the secure email business. It was a pre-emptive measure inspired by Lavabit's self-shuttering, and a worrying sign for the U.S.-hosted secure communications industry.![]()
First Lavabit, now Silent Circle: Another U.S. secure email service closes to protect users originally published by Gigaom, © copyright 2013.
