A frustrated security expert sick of being ignored by Facebook's people took to Mark Zuckerberg's personal Facebook wall to report a security vulnerability that allows strangers to post on anybody's wall.
Unfortunately for Khalil Shreateh, he isn't eligible for the $500 bonus that you usually get for reporting a security flaw because he broke Facebook's Ts & Cs by hacking its CEO's profile.
The bug has now been fixed, but here it is in video form, if you want to relive past glories:
Post some blips on strangers' Facebook walls, if you like.
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