A couple of IE7 developers share some details about the changes to security zones in the upcoming Internet Explorer 7.
Internet Explorer enforces security rules for websites by grouping them into categories or “security zones”. Today we want to explain the changes to security zones you’ll see in IE7 so we should first clarify what the security rules are in IE6.
On the Security tab of Internet Options under the tools menu, you will see the Internet, Intranet, Trusted Sites and Restricted Sites zones. The rules for security zones control how each group of websites is allowed to interact with your computer. If you put a site in the Restricted sites zone, IE will prevent the site from using features like script and ActiveX controls.