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Have I Been Pwned Adds 1.96 Billion Accounts from Synthient Data Breach

Have I Been Pwned Adds 1.96 Billion Accounts from Synthient Data Breach

First seen 2 Dec 2025, 18:33 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

Have I Been Pwned (HIBP) has incorporated 1.96 billion unique email addresses and 1.3 billion passwords into its database, sourced from the Synthient credential stuffing threat data. This addition significantly expands the platform's resources for breach notifications and user awareness regarding compromised accounts.

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