What do web coupons know about you?

This article sheds more insights into the power of data and the growing role of privacy in the network era.  may be the following paragraph is enough to urge you to read the full article..

A new breed of coupon, printed from the Internet or sent to mobile phones, is packed with information about the customer who uses it. While the coupons look standard, their bar codes can be loaded with a startling amount of data, including identification about the customer, Internet address, Facebook page information and even the search terms the customer used to find the coupon in the first place.

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