This is a classic phishing ploy, according to Cluley. Hackers may be looking for your account information in order to send spam, or pose as you in order to pull off a 419 scam like the one mentioned above. In order to avoid having this happen, make sure you check the url before entering your log-in information. If your browser bar says anything other than Facebook.com or Twitter.com, leave the site immediately.

The other potential in this scam is spyware infection, said Cluley. The tiny url function makes this even easier for scammers because you can't see the link you are clicking.

"You click on a link that is infected with spyware, and it can steal credentials, bank information, all kinds of useful information about the different accounts you may have," he said.

Bottom line: If a link or a message seems suspicious; click at your own risk.

Test your IQ Facebook members who recently decided to use an application that offered an IQ test were unpleasantly surprised to learn they had unwittingly also subscribed to a text messaging service that cost approximately $30 a month.