National Public Data Breach 3 Billion: Largest Data Broker Breach in History
Updated 2026-06-13. This report covers the privacy implications, data exposure scope, and actionable steps you can take to protect yourself. Based on public filings, regulatory actions, and independent research.
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Get Started FreeWhat Happened: The Full Story
National Public Data, a background check and data broker company, suffered a breach exposing approximately 2.9 billion records containing names, Social Security numbers, mailing addresses, email addresses, and phone numbers of individuals primarily in the US, UK, and Canada. The breach represented one of the largest data exposures in history, with the stolen database reportedly offered for sale at $3.5 million. The incident exposed the hidden data broker industry that compiles and sells personal information, often without individuals' knowledge or consent. Many affected individuals had never heard of National Public Data and were unaware the company held their information. The breach prompted calls for comprehensive data broker regulation and highlighted the risks of companies aggregating vast databases of sensitive personal information with inadequate security. National Public Data filed for bankruptcy following the breach, raising concerns about accountability and remediation when breached companies lack resources to assist affected individuals.
The ramifications of this incident extend beyond the immediate data exposure. Privacy regulators in multiple jurisdictions have opened investigations, and affected individuals are organizing collective action to demand accountability and meaningful remediation. The case highlights systemic weaknesses in how organizations handle personal data and the gap between corporate privacy promises and operational reality.
For impacted individuals, immediate action is critical. Filing a data subject access request forces the company to disclose exactly what data they hold about you, providing the foundation for deletion requests, regulatory complaints, and potential legal action. Below, we outline the specific data types at risk and the concrete steps you can take to protect yourself.
Data Types at Risk
What You Can Do Right Now
Step 1: File a Data Subject Access Request
A DSAR forces National Public Data to disclose every piece of personal data they hold about you within 30 days (GDPR) or 45 days (CCPA). This is your legal right regardless of where you live, as most modern privacy laws include some form of access right. The DSAR response will reveal the full scope of data exposure and provide the evidence foundation for any subsequent legal action.
View DSAR guide for National Public Data →Step 2: Audit Your Existing Data Exposure
Beyond National Public Data, your data likely flows through dozens of connected services and subprocessors. Use a comprehensive privacy audit tool to map your entire data footprint. Identify every company that holds your personal information and assess the risk each one poses based on their security track record and data handling practices.
Step 3: Consider Privacy-First Alternatives
If National Public Data has demonstrated it cannot be trusted with your data, explore alternatives that prioritize privacy by design. The following alternatives have been evaluated for their data handling practices, retention policies, and overall privacy posture.
Step 4: Report to Regulators
Individual complaints to data protection authorities create regulatory pressure that drives systemic change. In the EU, file with your national Data Protection Authority. In the US, file with your state Attorney General and the FTC. In the UK, file with the ICO. Each complaint costs nothing to file and contributes to enforcement patterns that regulators use to prioritize investigations. Collective action amplifies individual complaints.
Step 5: Monitor for Downstream Impact
Data exposure effects can take months or years to materialize. Set up monitoring for the specific data types compromised in this incident. For identity data, enable credit monitoring and fraud alerts. For biometric data, monitor for unauthorized account creation. For health data, review medical records and insurance statements regularly. Ongoing vigilance is the most effective defense against delayed exploitation of compromised data.
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Learn MoreFrequently Asked Questions
What is National Public Data and why did they have my information?
National Public Data was a data broker that compiled personal information from public records, commercial databases, and other sources for background checks. They likely obtained your data without your direct knowledge or consent, as data brokers operate with minimal regulatory oversight.
Were 3 billion people really affected?
The breach exposed approximately 2.9 billion records, but this includes duplicate and historical entries. The actual number of unique individuals affected is estimated in the hundreds of millions, still making it one of the largest breaches ever.
What should I do about the National Public Data breach?
Freeze your credit immediately with Equifax, Experian, and TransUnion. Monitor your accounts for suspicious activity. Use HaveIBeenPwned.com to check your exposure. Consider identity theft protection services and file a complaint with the FTC about data broker practices.
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