How to Track President Trump

If you own a mobile phone, its every move is logged and tracked by dozens of companies. No one is beyond the reach of this constant digital surveillance. Not even the president of the United States.

The Times Privacy Project obtained a dataset with more than 50 billion location pings from the phones of more than 12 million people in this country. It was a random sample from 2016 and 2017, but it took only minutes — with assistance from publicly available information — for us to deanonymize location data and track the whereabouts of President Trump.

he device’s owner was easy to trace, revealing the outline of the person’s work and life. The same phone pinged a dozen times at the nearby Secret Service field office and events with elected officials. From computer screens more than 1,000 miles away, we could watch the person travel from exclusive areas at Palm Beach International Airport to Mar-a-Lago.

[Related : Where Even the Children Are Being Tracked – We followed every move of people in one city. Then we went to tell them.]

The meticulous movements — down to a few feet — of the president’s entourage were recorded by a smartphone we believe belonged to a Secret Service agent, whose home was also clearly identifiable in the data. Connecting the home to public deeds revealed the person’s name, along with the name of the person’s spouse, exposing even more details about both families. We could also see other stops this person made, apparently more connected with his private life than his public duties. The Secret Service declined to comment on our findings or describe its policies regarding location data.