GPS Tracking: We Know Where You Are

Last year, some mall owners faced public objection after announcing plans to discreetly track shoppers via their personal mobile devices. The purpose was to collect a precise view of customer foot traffic, which in turn help retailers improve the layout of their businesses. But they rolled back the scheme after being accused of violating customers' privacy.

This technology is good that it provides detailed, yet anonymous data on foot traffic, which could be used for designing better stores, stadiums, city streets, and so on. Unfortunately, it turns bad when a company could track you anonymously based on your device, collecting identifying information about you that could be sold or stolen.