Google is testing using HTTPS by default on all Gmail pages, though the move would likely inhibit performance

After prompting by a group of privacy advocates, Google said Tuesday that it plans to test a more secure version of its Gmail service to see if it is viable.

Google plans to change its back-end servers so that some users will automatically use an encrypted HTTPS connection when they use Gmail. Right now, everyone uses HTTPS to log in to Gmail, but after that Web pages are sent without encryption.

More: http://infoworld.com/d/applications/google-try-more-security-gmail-860