By Johannes Ullrich Lots of crypto: 1024 even less trusted; Facebook sees lots of STARTTLS; PGP: Still right for modern times?
1024 Bit CAs even less trusted
https://kuix.de/blog/index.php?entry=Cleanup-of-1024-bit-CA-certificates
Facebook sees vast improvement in STARTTLS use over only 3 months
https://www.facebook.com/notes/protect-the-graph/massive-growth-in-smtp-starttls-deployment/1491049534468526
PGP Showing Its Age, but no suitable replacement in sight
http://blog.cryptographyengineering.com/2014/08/whats-matter-with-pgp.html More Here