Washington Post said:
An unemployed Palestinian developer named Khalil Shreateh tried several times to report a bug to Facebook’s security team. When no one got back to him, he took the (dubiously) logical next step: exploited the bug to leave a public comment on Facebook CEO Mark Zuckerberg’s wall.
“First sorry for breaking your privacy and post to your wall,” an apparent screenshot of the hack reads. “I has [sic] no other choice to make after all the reports i sent to Facebook team.”
The break-in, detailed on Shreateh’s blog (and in several agitated posts from Facebook developers on Hacker News), has been more than a little embarrassing for Facebook.