A Palestinian Web Developer and Hacker, ‘Khalil Shreateh’ found an interesting vulnerability in Facebook, that allows hacker to bypass the Privacy settings to make a post on anyone’s Timeline / Wall.
He was forced to post vulnerability details on Mark Zuckerberg (Facebook Founder) Timeline to prove his point, after the Facebook Security Team failed to recognize his critical vulnerability
Source: Palestinian Hacker posted vulnerability details on Mark Zuckerberg’s Timeline