Facebook beefs up security after Zuckerberg's hacking

PALO ALTO, Calif. Facebook is adding some new security features after founder Mark Zuckerberg's fan page was hacked. Members will now have the option to securely browse the site using the same technology as online banks and retailers. Facebook is also looking to block hackers through "social authentication," which will occasionally show you pictures of your friends and ask you to select their correct name from a multiple choice list.