According to a new FTC report, retailers are hiring 'intermediary firms' to algorithmically tweak and target their prices, so you may be paying more based on your web history and profile.

Major retailers can tailor prices based on customer data including location ... about the use of what they termed “surveillance pricing.” The FTC found that as many as 250 different businesses ...

Major retailers can tailor prices based on customer data including location, demographics or shopping history, the US Federal Trade Commission said in initial study findings, raising concerns about ...