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What Do Data Brokers Know About You? (And How to Find Out for Free)

Data brokers quietly buy and sell your name, address, phone, and more. Here's exactly what they collect, where it comes from, and how to see your own exposure for free.

Digital KarmaJune 4, 2026 6 min read
What Do Data Brokers Know About You? (And How to Find Out for Free)
Right now, companies you've never heard of are buying and selling a profile of you. Your name, your home address, your phone number, your relatives, your approximate income, the websites you visit — packaged up and sold to anyone willing to pay. They're called data brokers, and most people have no idea how exposed they are until something goes wrong. The good news: you can see your own exposure for free, and once you know what's out there, you can do something about it. Here's how it works. ## What is a data broker? A data broker is a company whose business is collecting personal information about people and selling it. You're not their customer — you're their product. There are hundreds of them, and collectively they hold staggering amounts of detail on nearly every adult in the country. Some are "people-search sites" you may have seen pop up when you Googled your own name — the ones that show a preview of your address and relatives, then ask you to pay to "unlock the full report." Others operate entirely behind the scenes, selling data to advertisers, marketers, and unfortunately sometimes to scammers. ## What information do they actually have? It's usually more than people expect. A typical data-broker profile can include: - **Full name, current and past addresses** — often going back years - **Phone numbers and email addresses** — including ones you thought were private - **Age, date of birth, and family members** — spouses, children, relatives - **Approximate income, home value, and property records** - **Court and public records** — and sometimes things that are simply wrong - **Online behavior** — sites visited, purchases, interests, inferred from tracking Stitched together, these fragments form a profile detailed enough to guess your daily routine, your finances, and your relationships. ## Where do they get it? Three main sources: 1. **Public records** — voter rolls, property deeds, court filings, business registrations. 2. **Things you've shared** — that "free" app, the loyalty program, the website that made you create an account, the quiz you took. The price was your data. 3. **Other companies** — data brokers buy from each other and from businesses that sell customer lists, compounding the spread. The unsettling part is how little you ever agreed to. A single piece of data you shared once, years ago, can end up resold across dozens of sites. ## Why this matters more than it seems It's easy to shrug this off — "so what if someone knows my address?" But concentrated personal data is exactly what powers the harms people actually worry about: - **Scams and phishing** that feel personal because they *are* — built from your real details. - **Identity theft** — internet crime cost Americans $16.6 billion in 2024, a 33% jump in a single year. - **Stalking and harassment** — a home address is a few dollars away for anyone. - **Spam** — the relentless calls and emails that follow your data around. About 2 in 5 adults reported falling victim to a scam in a recent year. The data sitting in broker databases is the raw material for a lot of it. ## How to find out what's out there — for free You don't have to guess. The fastest way to see your exposure is to run a free scan that checks the major data-broker and people-search sites for your information, along with whether your email or passwords have shown up in known data breaches. > **See your own exposure now.** Digital Karma's free CyberScore scans where your personal information is exposed across data brokers and breaches — and gives you a clear 0–100 score across 10 security areas, with plain-English steps to fix what it finds. No tech skills, no account required to start. **[Get my free CyberScore →](https://digitalkarma.app)** ## What to do once you know Seeing the exposure is step one. From there: 1. **Prioritize.** Not every listing is equally risky. Focus first on sites that rank high in Google searches for your name — that's where bad actors look first. 2. **Opt out.** Most brokers have an opt-out process (often deliberately buried). It works, but it's tedious, and sites frequently re-list you. 3. **Decide your approach.** You can opt out manually for free, use a removal service like DeleteMe or Incogni to do it for you, or — to understand the *whole* picture and build habits so the exposure doesn't come back — use a tool that scores, scans, and teaches. 4. **Close the gaps that caused it.** Strong unique passwords, two-factor authentication, and tighter privacy settings stop new data from leaking out. Data brokers count on you never looking. The simple act of checking — and then fixing the biggest gaps — puts you ahead of almost everyone. > **Ready to see where you stand?** Get your free CyberScore in about 15 minutes and find out exactly what's exposed. **[Start free →](https://digitalkarma.app)** *Related reading: [Is Your Email in a Data Breach? How to Check and What to Do](/articles/is-your-email-in-a-data-breach) · [How Exposed Are You Online? A Free 10-Point Security Checklist](/articles/how-exposed-are-you-online-security-checklist)*
data brokersprivacypersonal datapeople search sitesopt outcyberscore

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