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Re:Seriously? Ads? by chris-deskpro on Wednesday May 30, 2012 @02:53PM (#4044238)
Facebook does have data that can be used to fight fraud; e.g. "which of these 10 photos if your friend" or "which of these 10 cities did you visit last year".

Visa/Mastercard/Amex only have your transactions to go on so naturally they have spent billions building fraud tools around this data; that's not to say there are not a lot of other data points to build these tools.

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