Your search history is all they need

… apparently, to track you down.

In 2006, the New York Times tracked down a woman in Georgia using only her search history. AOL, as part of a research project, had placed online a 3-month search history for 650,000 users without user names or any other identifiable information – or so they thought:

No. 4417749 conducted hundreds of searches over a three-month period on topics ranging from ”numb fingers” to ”60 single men” to ”dog that urinates on everything.”

And search by search, click by click, the identity of AOL user No. 4417749 became easier to discern. There are queries for ”landscapers in Lilburn, Ga,” several people with the last name Arnold and ”homes sold in shadow lake subdivision gwinnett county georgia.”

It did not take much investigating to follow that data trail to Thelma Arnold, a 62-year-old widow who lives in Lilburn, Ga., frequently researches her friends’ medical ailments and loves her three dogs. ”Those are my searches,” she said, after a reporter read part of the list to her.