MSDN's Internet Explorer Weblog talks about the new HTTPS-security features within Internet Explorer 7. The HTTPS-protocol in an encrypted version of the HTTP-protocol that is used for safe transactions. Most of the changes boost the standard safety settings of the browser and are manually configurable by IE6.IE users will not notice any difference in the user-experience; it’s a silent improvement in security. Our research indicates that there are only a handful of sites left on the Internet that require SSLv2. Adding support for SSLv3 or TLSv1 to a website is generally a simple configuration change. On a secure site, you can examine what protocol is in use by clicking Properties on the File menu. Alternatively, you can use Microsoft Fiddler’s “Capture HTTPS CONNECTs” option to view a complete listing of which protocols and encryption algorithms your browser offers and which the server chooses.
Upcoming HTTPS Improvements in Internet Explorer 7 Beta 2