Atlas Data Privacy Corp, which helps its users remove personal information from consumer data brokers and people-search services online, is suing Babel Street, which allows customers to track individual mobile users using tracking data built into everyday Android and Apple phones.

Brian Krebs, KrebsOnSecurity:

Collectively, these stories expose how the broad availability of mobile advertising data has created a market in which virtually anyone can build a sophisticated spying apparatus capable of tracking the daily movements of hundreds of millions of people globally.

In the hands of domestic terrorists and US states that have enacted fanatical anti-abortion laws, the technology can be used to track suspected illegal immigrants, women seeking abortions, public servant targeted by baseless conspiracy theories, and more.

Atlas says the Babel Street trial period allowed its investigator to find information about visitors to high-risk targets such as mosques, synagogues, courtrooms and abortion clinics. In one video, an Atlas investigator showed how they isolated mobile devices seen in a New Jersey courtroom parking lot that was reserved for jurors, and then tracked one likely juror’s phone to their home address over several days.

The article goes into detail about how this service is already allegedly being used for harassment, as well as the possibility of far more. Journalist Brian Krebs recommends turning off tracking on Android phones and iPhones, and includes instructions on how to do so. Do it now, and do it for everybody who lives with you, because if attackers can find people you live with they can find you too.