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Privacy of personal info is a significant challenge for some shoppers. Many consumers wish to avoid spam and telemarketing which could result from supplying contact data to a web based merchant. In response, many retailers promise to not use shopper info for these functions, Many websites preserve monitor of shopper buying habits with a view to recommend objects and other web sites to view. Brick-and-mortar stores additionally accumulate client data. Some ask for a consumer’s handle and cellphone number at checkout, though shoppers may refuse to offer it. Many bigger stores use the deal with information encoded on shoppers’ credit cards (usually with out their knowledge) so as to add them to a catalog mailing record. This data is clearly not …