Girl killed herself, after her dad posted this to her wall -scam app

This is probably the worst of all of the Facebook scams I've seen. You may have actually seen this one floating around Fbook yourself. Basically the app uses phrases like "Girl killed herself, after her dad posted this to her wall". The app posts to users walls sentences like that in hopes of getting someone to click the link. Once you click the link there are a few things that will happen, they will try to trick you into liking their page, get you to fill out a survey(it earns them money), collect your personal information, as well as exploit Facebook Connect, One friend I've seen has had the malicious exploit send messages to all of his friends. Now all of his friends have the same problem. You can fix this issue however.

One of the Facebook pages it tries to get you to "like"

If you or a friend fell prey to this scam you can fix the problem. Unfortunately though if you gave them your personal info, they will still have it(there is no way to change that). This video provided by Sophos will teach you how to fix the issue.