
National Public Data
What 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.
Compromised Data
Recommended Actions
Monitor for Suspicious Activity
Watch for unusual login attempts, spam and phishing emails.
Breach Overview
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Affected Accounts:
134 million
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Breach Occurred:
April 2024
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Added to HIBP:
13 Aug 2024
Breach Classification
Some breaches may be flagged as "unverified". In these cases, whilst there is legitimate data within the alleged breach, it may not have been possible to establish legitimacy beyond reasonable doubt.
Unverified breaches are still included in the system because regardless of their legitimacy, they still contain personal information about individuals who want to understand their exposure on the web.
Recommended Actions
Change Your Password
If you haven't changed your National Public Data password since 2024, do so immediately.
Enable Two-Factor Authentication
Add an extra layer of security to your account.
Check Other Accounts
If you used the same password elsewhere, change those too.
Monitor for Suspicious Activity
Watch for unusual login attempts or messages from your account.