Palestinian white hat hacker discovered a vulnerability that allowed him to post on anyone’s wall. Facebook’s security team didn’t respond to his report, but he posted on Mark Zuckerberg’s wall about it. Facebook says that in hacking Zuck’s wall he violated Facebook’s terms of service. Facebook admits that its team should have been more diligent in following up on Khalil’s submission. But Facebook says he can’t claim a reward for the find because he violated terms of the site’s terms-of-service.”]
Source: https://gizmodo.com/a-guy-hacked-zucks-wall-after-facebook-ignored-his-bug-1163729527