Source: Engadget
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Like your Gmail account? Consider it a sacred place which must be protected from spammers at all cost? Yeah, us too. Well, we hate to break the bad news at the dawn of the new year but there's a weakness in Gmail which exposes your email address to any web site capable of exploiting the bug. As reported on Digg, the exploit takes advantage of the fact that Google puts your details into a JS file. As a result, if you're logged into Gmail and browsing the web, any rogue website can declare the function "google" and then parse all your contacts. The only way to safeguard yourself is to disable Javascript in your browser (or enabled it for trusted sites only) or simply climb into a hole and not browse while logged into Google services like Gmail, Blogger, Orkut, Reader, Calendar, etc. -- you know, the sites you typically have open all day long.