Comment Re:Its not O2, its Google (Score 1) 154
No, it's not Google's fault.
O2 is responsible for ensuring that their pages are authenticated. Regardless of how a URL is known to Google, it should be free to crawl it. There are only two ways Google can know whether it is allowed to have it's content: robots.txt (which is a mere hint) and authentication handled by the site.
Googlebot doesn't have a cookie to authenticate itself so a proper site will simply tell it to log in or go away when accessing private pages, or simply not show anything marked private on pages that include content with different access levels.
