Loading
Loading
We use strictly necessary cookies to run this site, and analytics cookies to understand how it's used. See our Privacy Policy for details.
Breach occurred 2024-04-09What happened
In April 2024, a large trove of data made headlines as having exposed "3 billion people" due to a breach of the National Public Data background check service. The initial corpus of data released in the breach contained billions of rows of personal information, including US social security numbers. Further partial data sets were later released including extensive personal information and 134M unique email addresses, although the origin and accuracy of the data remains in question. This breach has been flagged as "unverified" and a full description of the incident is in the link above.
Data exposed
Frequently asked questions
The National Public Data data breach occurred on April 9, 2024. It was added to Have I Been Pwned's breach catalog on August 13, 2024.
133,957,569 accounts were affected by the National Public Data data breach, according to Have I Been Pwned's records.
The National Public Data breach exposed the following data types: Dates of birth, Email addresses, Genders, Government issued IDs, Names, Phone numbers, Physical addresses.
Have I Been Pwned has not independently verified the National Public Data breach. Unverified breaches can still be genuine — verification just means HIBP hasn't been able to confirm the data's authenticity directly, often because the source is a smaller or less-publicized incident.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the National Public Data breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
Check your email →Talk to us about this
We help organizations find and fix the gaps that lead to a breach, before they do.