Not even Facebook's supreme leader is impervious to hackers. The company's CEO Mark Zuckerberg had his account breached by a man last week who wanted to point out a flaw in the site's programming. ABC News is reporting that Palestinian security researcher Khalil Shreateh successfully hacked Mark's page and posted on his wall. Khalil wrote, "First, sorry for breaking your privacy and posting to your wall, I had no other choice to make after all the reports I sent to the Facebook team." Shreateh also included a link to a YouTube video showing exactly how he was able to do what he did. The researcher reported a bug that allowed people to post something on non-friend's timeline but Facebook's White Hat Security team responded by telling him it wasn't a bug. Facebook's White Hat program offers security researchers a monetary reward for reporting security bugs but Shreateh was not paid because he violated the program's Terms of Service by demonstrating the problem and exploiting someone's account without their permission.