About Mark Cohen's Blog:


Mr. Cohen has a great reputation when it comes to building and training elite sales teams, as well as, speaking at many local and national financial events.

This blog will serve as a place for Mr. Cohen to share financial news and information going on in world.

Friday, January 30, 2015

'Anonymized' credit card data not so anonymous

Credit card data isn't anonymous, a new MIT study says. Customers can be identified with about 90 percent accuracy by just four purchases.

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