Proprietary service...
This is what happens when you depend on a proprietary service supplied by a single entity...
There need to be open standards for secure communication, just like there are open standards for unencrypted communication.
A company that provided free cellphone encryption to dissidents in Egypt abruptly suspended its services on Monday so that Twitter could integrate some of its privacy enabling technology into the microblogging site. Twitter's acquisition of San Francisco-based Whisper Systems came on Monday, the same day Egyptian citizens …