Delete All Your Apps

The New York Times published a horrifying investigation in which the publication reviewed a huge, “anonymized” dataset of smartphone location data from a third-party vendor, de-anonymized it, and tracked ordinary people through their day-to-day lives—including sensitive stops at places like Planned Parenthood, their homes, and their offices.

The article lays bare what the privacy-conscious have suspected for years: The apps on your smartphone are tracking you, and that for all the talk about “anonymization” and claims that the data is collected only in aggregate, our habits are so specific—and often unique—so that anonymized identifiers can often be reverse engineered and used to track individual people.