IDI, a year-old company in the so-called data-fusion business, is the first to centralize and weaponize all that information for its customers. The Boca Raton, Fla., company’s database service, idiCORE, combines public records with purchasing, demographic, and behavioral data. Chief Executive Officer Derek Dubner says the system isn’t waiting for requests from clients—it’s already built a profile on every American adult, including young people who wouldn’t be swept up in conventional databases, which only index transactions. “We have data on that 21-year-old who’s living at home with mom and dad,” he says.

Dubner declined to provide a demo of idiCORE or furnish the company’s report on me. But he says these personal profiles include all known addresses, phone numbers, and e-mail addresses; every piece of property ever bought or sold, plus related mortgages; past and present vehicles owned; criminal citations, from speeding tickets on up; voter registration; hunting permits; and names and phone numbers of neighbors. The reports also include photos of cars taken by private companies using automated license plate readers—billions of snapshots tagged with GPS coordinates and time stamps to help PIs surveil people or bust alibis.

IDI also runs two coupon websites, allamericansavings.com and samplesandsavings.com, that collect purchasing and behavioral data. When I signed up for the latter, I was asked for my e-mail address, birthday, and home address, information that could easily link me with my idiCORE profile. The site also asked if I suffered from arthritis, asthma, diabetes, or depression, ostensibly to help tailor its discounts.