We've reached a point where using the internet has made our personal information very vulnerable to snoopers. If it's not hackers trying to get into our bank accounts, it's the government scooping up every tiny bit and byte it can about us. It's incumbent on service companies to make sure our information stays private. So this story is presents a sort of cosmic justice.
Seems that an IT guy found a bug in Facebook's security that let him post remarks on anyone's Facebook wall. (This site says a Facebook wall is a "section in your profile where others can write messages to you or leave you gifts." But presumably one has to have been invited to write messages or leave gifts.) Like the good guy he was trying to be, he dutifully notified Facebook about it. And they blew him off.
So he put up a post on Mark Zuckerberg’s wall. Here's the story on DigitalTrends.com. Facebook responded by disabling the guy's Facebook account, although it was only temporary. And they finally got around to fixing the bug.
Meanwhile, if Facebook makes you depressed, you're not alone. From the scientific community we learn that real social networks enhance a person's well being while Facebook does the opposite:
Rather than enhancing well-being, as frequent interactions with supportive “offline” social networks powerfully do, the current findings demonstrate that interacting with Facebook may predict the opposite result for young adults—it may undermine it.
Not exactly a ringing endorsement from the behavior researchers.