How do data brokers find your information? They collect it from five main sources: public records, breach and leak data, app permissions and advertising SDKs, social-media scraping, and digitised offline records. None of it needs a hack. Your name, phone number, home address, employment history, and family details end up listed on dozens of broker and people-search sites, and you never put them there. Here is how they got your data, and what you can do about it.
Where do data brokers get your information?
There are five main channels, and most brokers use all of them at once.
Public records. Voter rolls, property registrations, court records, and company filings are publicly accessible in most countries. Data brokers scrape these systematically. Then they cross-reference each record against other sources to build a single profile.
Telecom and financial data leaks. Large breaches from telecom operators, banks, and government databases happen worldwide. Breached data enters the broker ecosystem within days. For how a leaked record travels, see how breach data gets sold.
App permissions and SDKs. Free apps that request contact, location, and storage permissions often share that data with advertising SDKs. Those SDKs sell it on to data aggregators. The app is free because you are the product. We cover this in detail in the apps that quietly sold your data.
Social-media scraping. Public profiles on LinkedIn, Facebook, and Instagram get scraped and combined with other sources. The result is a fuller profile than anything you chose to publish.
Offline data digitisation. Business-card apps, loyalty programs, event registrations, and survey companies digitise offline interactions. Then they sell the data.
What do brokers do with your data?
Data brokers sell your information to advertisers for targeted marketing, to recruiters for candidate sourcing, and to insurers for risk assessment. They also sell it to scammers running social-engineering attacks, and to stalkers and abusers trying to find people. Anyone willing to pay can buy.
Prices range from pennies per record for bulk marketing data to hundreds of rupees for a detailed background report with financial information. For the full price chain, see the data broker economy. The people-search sites that resell these profiles to individuals include Spokeo, Whitepages, and BeenVerified.
What rights do GDPR, CCPA, and DPDPA give you?
Privacy laws like GDPR (EU and UK), CCPA (California), and DPDPA (India) give you real rights. You can ask a company what data it holds about you. You can request correction of inaccurate data. You can request erasure. You can withdraw consent at any time.
The catch is the work involved. Exercising these rights means identifying every broker, then navigating each one’s own process. Many of those processes are deliberately complex. And you have to keep watching for re-listing, because removed records come back. For step-by-step removal walkthroughs, see how to remove yourself from US data brokers.
What does KnytX do?
KnytX Privacy Shield is built to automate this process. Once it launches, it will scan data-broker databases, submit removal requests under DPDPA (and GDPR/CCPA for international brokers), confirm each removal request, and re-check for re-listing. You will get a dashboard showing every broker found and the status of every removal request.
Shield isn’t live yet. Join the waitlist to run yours at launch.
Frequently asked questions
How do data brokers get my phone number if I never gave it to them? They pull it from public records, telecom directory listings, breach data, and apps you granted contact permissions to. Contact-sync apps are a common source: a friend uploads their phonebook, and your number goes with it. See what Truecaller knows.
Is it legal for data brokers to sell my information? In most countries, yes, when the underlying data is public record. Laws like CCPA, GDPR, and DPDPA give you the right to opt out or request deletion, but they do not ban the trade outright.
Can I stop data brokers from finding me completely? Not entirely. Public records refresh, so removed listings often reappear within 30 to 90 days. The realistic goal is continuous suppression: remove, then re-check and re-file. That is why automated removal services exist.
Which data brokers should I remove myself from first? Start with the people-search sites that rank in Google for your name, such as Spokeo, Whitepages, and BeenVerified. They are the highest-exposure and the easiest to opt out of.