According to Facebook, one out of 12 accounts registered is actually fake!

About 8.7% of Facebook accounts are bogus. That's around 83 million profiles.

That number is a lot higher than the 5% to 6% Facebook said were fake in March, before its IPO.

Here's the breakdown:
• About 4.8% are "duplicate" accounts, meaning an account a user maintains in addition to his principal one.
• About 2.4% are "user-misclassified," meaning that a business or other organization has been given an account as though they were a person.
• About 1.5% are "undesirable," meaning they exist to generate spam or are otherwise up to no good.