Facebook founder Mark Zuckerburg is trending after his Facebook fan page was hacked. Users were surprised when a post read “let the hacking begin” and went on to suggest Facebook become a social-cause-driven business. The post generated more than 1,800 “likes” before it was removed. Facebook had no comment. But in a blog post, the company reiterated its commitment to personal-data security. The Zuckerberg breach comes days after someone hacked French President Nicolas Sarkozy’s Facebook page to post a message that Sarkozy would not be running for re-election. Not true, according to the real Sarkozy.