After examining maps showing the locations extracted by their apps, Ms. Lee, the nurse, and Ms. Magrin, the teacher, immediately limited what data those apps could get. Ms. Lee said she told the other operating-room nurses to do the same.“I went through all their phones and just told them: ‘You have to turn this off. You have to delete this,’” Ms. Lee said. “Nobody knew.”
Everyone is afraid of what Google and Facebook “know” about them and how much information they’re sharing with these services because of poor media coverage.
While those two services need to be investigated and questioned, it’s the “bottom half” of the advertising industry connected to seemingly innocent apps that you install on your mobile device to give you the weather or locations of gas or local sports scores that are really the most alarming in how they treat your personal location data.
Good report here by the NY Times (we need more of this type of journalism in the tech-sphere).