If you’ve ever wondered how a company seemed to know you were shopping for a new car, or why your inbox fills up with ads right after you mention something out loud, the answer likely traces back to a sprawling, largely invisible industry: data brokers.
A new investigation, conducted jointly by CalMatters and Consumer Reports, pulled back the curtain on what these companies actually know about ordinary people — including many Southern California residents whose digital habits, purchases and even health guesses are being bought and sold without their knowledge.
Reporters asked for volunteers to formally request their personal data files from some of the country’s largest data brokers, firms such as Acxiom and Epsilon. Newer privacy laws in several states now require brokers to reveal which companies purchased a person’s information, making these requests possible. Hundreds of people stepped forward, and the resulting files paint a startling picture of just how much is tracked, guessed at and monetized.
What’s actually in these files
The reports obtained by volunteers were extensive — containing names, home addresses, Social Security numbers and, in many cases, more than a thousand inferred details about personal habits and characteristics. The files aren’t static, either. They’re constantly updated and sold to more than 100 major U.S. corporations, according to the investigation.
Among the data points found in these profiles: the last time someone logged into their computer, how much they’ve spent on clothing, furniture or restaurants over several years, how many children they have and those children’s ages and genders, whether someone is considered “blue collar” or “white collar,” and even whether a person has ever been the victim of fraud.
Not all of it is accurate. In one case, a single report contained six conflicting guesses about a person’s age.
A file that starts with your identity — and outlives you
Data brokers maintain records on nearly every American adult. Acxiom claims to have profiles covering roughly 95% of U.S. adults, while Epsilon says it holds data on nearly every “marketable” household in the country. These companies compile information from public records, commercial databases and other data brokers, building a profile that can follow someone from childhood well into old age — and even after death, according to the investigation.
Your gadgets are quietly reporting on you
The report also found that identifiers tied to a person’s phone, smart TV, home internet connection and even their car’s vehicle identification number are collected and cross-referenced by brokers. These identifiers allow companies to link a person’s behavior across multiple devices — meaning a search on a laptop, a habit tracked on a smart TV, and driving patterns from a connected vehicle can all be merged into a single profile.
You’re assigned a dollar value
While brokers typically don’t have direct access to bank accounts, they estimate income, savings and net worth using “modeled” predictions based on someone’s neighborhood, past purchases and the financial profiles of similar consumers.
Health and identity: educated guesses, not medical records
Without access to actual medical files, brokers infer sleep habits, smoking status, body mass index and whether someone carries health insurance. They also estimate religion, ethnicity, political leanings and the precise ages of a person’s children. These inferences are frequently sold to pharmaceutical companies, healthcare organizations and insurers.
Predicting your next move
Beyond describing who you are, brokers try to predict what you’ll do next — estimating the likelihood a person will buy a particular brand’s product, what type of car they might purchase, where they’re likely to dine, or whether they’re considering investing in cryptocurrency.
You’ve been assigned a “value” and a “profit” label
Perhaps most striking, some brokers assign consumers scores meant to estimate their financial usefulness to companies. Epsilon, for instance, sorts people into 26 “NICHES” categories with labels like “Easy Street,” “Mid Life Munchkins” and “Big Spender Parents,” and separately ranks how profitable a person might be to a business using tags such as “Best Profit Margin.”
Acxiom, meanwhile, calculates something it calls a “lifetime value score” — a number ranging from 0 to 200,000 used by auto, home and health insurers to estimate how profitable a customer might be. Acxiom then layers on additional labels, describing people as, for example, “Seniors ages 64+ years, with a medium ability to pay for medical expenses,” or “3+ Generations in the US.”
Who’s actually buying this information
The reports didn’t just reveal what was collected — they identified the specific companies that purchased people’s profiles. Investigators found hundreds of buyers across the files reviewed, spanning banks, insurers, retailers and lenders.
What happens once your data is sold
Once a profile lands in a company’s hands, it can shape real financial outcomes. Insurers use the data to evaluate the health risk of a company’s workforce when preparing quotes and premiums. Personal lenders use it to flag consumers who might need quick cash or are shopping for a vehicle — sometimes steering them toward loans with unfavorable terms and high interest rates. Banks use similar profiles to market extra financial products, such as identity theft protection or credit monitoring services, that a customer may not actually need.
Why opting out doesn’t solve the problem
Because most data brokers obtain information from other companies rather than directly from consumers, there’s no clear moment when someone agreed to share their information — and no simple way to undo it. Opting out of one broker’s database removes a person’s data from that single company, but it does nothing to erase the copies already sold and duplicated across dozens of other firms.
For now, experts say, the best defense consumers have is awareness — understanding that nearly every online interaction, purchase and device ping is quietly feeding a profile that’s being bought, sold and used to make decisions about their lives, often without their knowledge.
Original source: CalMatters
