How the Facebook 'Dislike' scam succeeded

Thousands of users of the social networking site have been conned by a fake application allowing you to "dislike" content. How?

The scam gives out your personal details, and automatically signs you up for a monthly cellphone charge.
(Image credit: Corbis)

Facebook users eager to install a "Dislike" button on the social networking site have fallen victim to a so-called "rogue application" that hands scammers access to personal information, and signs up unsuspecting users for monthly cell phone charges. (See the "Dislike" button at work.) How did this happen?

What's a "Dislike" button?

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