The Citizen Lab:

An investigation details Webloc, an ad-based geo surveillance system providing access to a constantly updated stream of records from up to 500M mobile devices  —  Location data collected from mobile apps and digital advertising can reveal habits, interests and almost any other aspect of someone's life.

The Citizen Lab:

An investigation details Webloc, an ad-based geo surveillance system providing access to a constantly updated stream of records from up to 500M mobile devices  —  Location data collected from mobile apps and digital advertising can reveal habits, interests and almost any other aspect of someone's life.

Source: TechMeme
Source Link: http://www.techmeme.com/260411/p7#a260411p7