What are data brokers? They are companies that collect your personal details, build a file on you, and sell that file to anyone who pays. The file often holds your address, phone number, relatives, buying habits and where your phone has been. Once you know how the trade works, you can shrink that file for free and make your family harder to find.
Most people meet data brokers by accident, when their name pops up on a people-search site next to an old address. Seeing your home listed for strangers is unsettling. The fix is a short list, a few evenings and a habit of checking back. Privacy belongs in family preparedness next to water, food and first aid, because it protects the same people.
Start by typing your full name and city into a search engine. Write down every people-search site that shows your listing. That list becomes your to-do sheet for the opt-out steps.
What Are Data Brokers and Where Do They Get Your Data
Knowing where your file comes from shows you which sources you can close. It also explains why one opt-out never finishes the job. After the sources come the buyers, and then the steps to remove yourself.
So what are data brokers in plain terms? We define them as businesses that gather personal information from many places, combine it into profiles, and sell or license those profiles. You rarely deal with them directly. They buy from the companies you do deal with, and they collect from government offices that keep public records.
The Companies You Never Met
The largest brokers sell marketing data in bulk. Some hold thousands of data points per person, sorted into groups like 'new parent,' 'recent mover' or 'outdoor buyer.' Others score risk for lenders, landlords and insurers. A third group sells raw location data gathered from phone apps. Most of these firms never show your name to the public. They sell to other businesses.
The film Gattaca shows a world where a file about your body decides which jobs and doors open to you. Broker risk scores work on a smaller scale, but the idea is the same: a profile you never see can shape what a lender, landlord or insurer tells you.
People-Search Sites
People-search sites are the public face of the trade. Type in a name and they show an address, age, phone number, email, past addresses and likely relatives. Many give a free teaser and charge for the full report. These sites matter most for family safety, because anyone can use them in minutes. They are also the easiest to remove yourself from, which makes them the right first target.
Where Your Data Comes From
- Public records. Property deeds, court filings, marriage records, business filings and, in some states, voter rolls are open by law, and brokers collect them in bulk.
- Apps. Many free apps share device IDs, contacts and usage with ad networks, and those networks pass the data down the chain.
- Loyalty cards. A grocery card links your name and phone number to every food and household purchase, and some retailers share that history.
- Location data. The Federal Trade Commission has taken action against location brokers such as Kochava and X-Mode for selling phone location data that could reveal visits to clinics, places of worship and homes.
- Forms and sweepstakes. Warranty cards, contest entries and online quizzes often carry fine print that lets your details be shared.
If you own your home, your name and address sit in county property records, and the courthouse keeps them. You can still remove them from the sites that copy them, and those sites are where most strangers look. If you rent, your trail is thinner, so each opt-out removes a bigger share of your file.
Who Buys Your File
Knowing the buyers turns a vague privacy worry into a clear safety reason. It shows why a smaller file protects your family in daily life. After the buyers come the opt-out steps.
Once you know what are data brokers, the next question is who pays them. The answer covers four groups.
Advertisers
Advertisers are the biggest customers. They buy segments to target ads, mail and phone calls. This is the most common use, and it is also how your profile keeps growing, because every purchase adds a new detail.
Scammers
Scammers buy or scrape the same data. A caller who knows your name, your street and your mother's name sounds believable. Lists of older adults, new homeowners and recent buyers are especially useful to fraud rings. A smaller file leaves a scammer fewer details to sound like your bank.
Stalkers and Abusers
People-search sites can turn a name into a home address in under a minute. That is the main safety threat for anyone leaving an abusive relationship, anyone with a public-facing job and anyone being followed. Removing your listing puts real distance between a person looking for you and your front door. Many states also run address confidentiality programs that give survivors a substitute address for public records.
Government Agencies
Government agencies buy from brokers too. Reporting over several years has documented federal agencies buying commercial location data without a warrant. A declassified 2023 report from the Office of the Director of National Intelligence confirmed that agencies buy commercially available information on Americans. Courts and lawmakers continue to debate whether a warrant should be required, and as of late 2026 that debate is still open. The practical step is the same for everyone: less data sold means less data bought. The broker trade is one part of the rise of the surveillance state, alongside license plate cameras and drones.
The film 1984 shows a state that watches every citizen through a screen in each room and keeps a record of every move. Today the watching runs on purchased files instead of screens on the wall, which is why a smaller file still gives your family real privacy.
Breaches Spill the Rest
Data that is collected can also be stolen. In September 2026, IDScan.net confirmed a breach exposing the names, license numbers and ID photos behind more than 150 million scanned driver's licenses. That is why what are data brokers is a safety question as well as a privacy one. Every listing you remove is one less copy waiting to leak.
How to Opt Out of Data Brokers, Step by Step
Working through opt-outs gets your home address and phone number off the sites strangers use most. It costs nothing but time, about an evening or two for each adult. After the steps comes a set of habits that keeps the file from refilling.
Paid removal services can look like the easy route, and they do save hours. They also cover a fixed list of sites, charge every year and still need your personal details to file requests. Data brokers removal by hand costs nothing and shows you exactly which sites hold your listing.
Step 1: Search Your Own Name
Search your full name with your current city, then with each past city. Repeat with your phone number and your email address. Open the top people-search results and note what each one shows. Do the same for every adult in your household. A larger family means more files, and it also means more hands, so give each adult their own list.
Step 2: Find Each Site's Opt-Out Page
Scroll to the bottom of each site and look for links named 'Do Not Sell,' 'Opt Out,' 'Privacy' or 'Remove My Info.' If the link is hidden, search the site name plus 'opt out.' Start with the largest sites, because many smaller sites copy from them. Clearing a large listing can make the copies drop off when they next refresh.
Step 3: Verify the Request
Most sites ask you to find your listing, click remove and confirm by email. Some ask for a phone call or a copy of an ID. Give only what the form requires. If a site asks for an ID, black out the photo and license number unless the form says it needs them. Use a separate sign-up email for confirmations, so your main inbox stays off new lists.
Step 4: Keep a Record
Track each request in a notebook or a simple spreadsheet. Write the site name, the date, the listing web address and any confirmation number. The record shows which sites are done and gives you proof if a listing returns. Keep it with your other preparedness papers so the next check takes minutes.
Step 5: Check Again in a Few Months
Brokers refresh their files from public records and new purchases, so listings often come back. Set a calendar reminder for three months out, then every six months. Run the same searches from Step 1 and repeat any opt-out that has returned. Each round runs shorter than the last.
State Deletion Tools
California's law answers what are data brokers in legal terms: businesses that sell data about people they have no direct relationship with. If you live in California, use the Delete Request and Opt-out Platform, known as DROP. One request through DROP reaches every data broker registered with the state, and registered brokers had to begin processing those requests in August 2026. If you live elsewhere, check your state attorney general's privacy page. Vermont, Texas and Oregon keep public data broker registries, and several states give residents a right to request deletion. If your state has no single tool yet, the hand method still works to opt out of data brokers, and it teaches you which sites matter most for your family.
Keep the File Small
Good habits stop new data from reaching brokers in the first place. That keeps each round of data brokers removal short and your family's file thin. Each habit takes a few minutes, and the list ends in three steps you can finish this weekend.
Once you know what are data brokers and how they feed, the fix is to give them less. Preppers already practice OPSEC, the habit of keeping useful details about supplies and plans close. The same thinking applies to personal data. Every detail you keep is one no broker can sell.
Location Permissions
Open your phone settings and review which apps can see your location. Set most apps to 'Never' or 'While Using.' Keep 'Always' for the few that need it, such as a family locator. Turn off ad tracking too. On an iPhone, switch off 'Allow Apps to Request to Track.' On Android, delete your advertising ID under the privacy and ads settings. App location data is the most sensitive part of your file, so this step pays off most.
Loyalty Cards
Loyalty cards trade your purchase history for a discount. If the savings matter to your food budget, keep the card and fill in only the fields the store requires. If the savings are small, pay with cash at the register. Either way, you decide how much of your shopping becomes data.
A Separate Email and Phone Number
Set up a free email address for sign-ups, store accounts and opt-out confirmations. Add a free internet phone number, such as a Google Voice number, for forms that demand one. Your real number and main inbox then stay with family, friends, school and work. When the sign-up inbox fills with spam, the system is doing its job, and you can replace that address without changing anything important. For browsers, trackers and accounts, the next layer of prepping is learning how to protect your privacy online.
Freeze Your Credit
Freeze your credit at Equifax, Experian and TransUnion. A freeze is free under federal law, and it blocks new accounts opened in your name. Broker files stay in place, but a freeze limits the damage when that data leaks, which makes it one of the strongest defenses against identity theft. Freeze your children's credit as well, because a clean record with no history is a favorite target. When you apply for a loan, lift the freeze for a day, then put it back.
Three Steps for This Weekend
- Search and list. Search each adult's name, phone and email, and write down every people-search site that shows a listing.
- Opt out and record. File removal requests on the largest sites first, and log each one with the date and confirmation.
- Cut the supply. Tighten app location permissions, create a sign-up email and freeze credit for every family member.
