In a world where most every online action leaves a digital footprint, data brokers have become major players in collecting and selling personal information. These companies gather data from countless sources, analyze it, and package it for sale to advertisers, financial institutions, marketers, and even other data brokers.
Who are data brokers?
Data brokers are companies that specialize in collecting and aggregating consumer data. They gather information from a variety of sources – public records, loyalty programs, online browsing histories, mobile apps, subscription services, retail transactions, social-media activity, and other sources. Much of this data collection is technically legal, but it often happens without consumers’ explicit awareness.
Once collected, data is sorted into detailed consumer profiles, which can range from basic demographic details to highly specific insights about behaviors, habits, and personal preferences. Data brokers use algorithms and analytics to infer patterns, allowing them to categorize individuals into groups such as “homeowners,” “new parents,” “outdoor enthusiasts,” or “high‑value spenders.”
What data do they sell?
The information sold by data brokers varies widely. Commonly shared data categories include:
- Names, addresses, phone numbers, and demographic information.
- Shopping history and brand preferences.
- Income ranges, household size, and lifestyle interests.
- Online behavior, including browsing patterns and frequently visited websites.
- Location data collected from mobile apps.
- Predictive insights, such as purchase likelihood or financial risk indicators.
Some brokers also handle more-sensitive categories, such as health‑related buying habits or behavioral predictions. Although data is usually sold in bulk rather than tied to a single identified person, the level of detail can still expose consumers to risks ranging from targeted scams to discriminatory marketing practices.
Why it matters
The profiles that consumers fall into influence the ads they see, the prices they’re offered, and even how companies assess them for credit, insurance, and/or employment. In the wrong hands, detailed data can also increase exposure to fraud and identity theft.
How to protect your personal information
Even though data collection is widespread, consumers can take practical steps to limit how much of their information ends up in databases:
- Minimize data sharing. Limit participation in loyalty programs, free apps, and online quizzes. Review privacy settings on social media to restrict what you share publicly.
- Opt out of data broker lists. Major brokers offer opt‑out forms, although the process can be tedious. Privacy services can automate removals across multiple databases for convenience. Retail websites may have a link at the bottom of the page with options for opting out of data collection.
- Limit mobile app permissions. Disable unnecessary access to your location, contacts, photos, and activity data.
- Read privacy policies to understand which of your information is being shared and with whom. In general, if a privacy policy doesn’t restrict sharing, it’s likely that an app or website is sharing your information.
How to safeguard your personal identifiable information
Data brokers are deeply embedded in the modern digital marketplace, but consumers are not powerless. By being selective about the information they share and being proactive about opting out, individuals can significantly reduce their exposure and protect their personal information.
Consumers who suspect a scam or an unfair business practice should contact the Ohio Attorney General’s Office at www.OhioProtects.org or 800-282-0515.