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Synthient Credential Stuffing Threat Data data breach2B accounts compromised on 2025-04-11
Verified
Synthient Credential Stuffing Threat Data was the source of a data breach dated 2025-04-11, exposing 1,957,476,021 accounts. The details below are mirrored from Have I Been Pwned and reflect the source's account of the incident at the time of publication.
Incident Report
| Target Organization | Synthient Credential Stuffing Threat Data |
|---|---|
| Source Name | SynthientCredentialStuffingThreatData |
| Domain | — |
| Breach Date | 2025-04-11 |
| Added to HIBP | 2025-11-06 |
| Last Modified | 2025-11-08 |
| Accounts Compromised | 1,957,476,021(2B) |
| Data Exposed | Email addressesPasswords |
| Status | Verified by HIBP |
Description
During 2025, the threat-intelligence firm Synthient aggregated 2 billion unique email addresses disclosed in credential-stuffing lists found across multiple malicious internet sources. Comprised of email addresses and passwords from previous data breaches, these lists are used by attackers to compromise other, unrelated accounts of victims who have reused their passwords. The data also included 1.3 billion unique passwords, which are now searchable in Pwned Passwords. Working to turn breached data into awareness, Synthient partnered with HIBP to help victims of cybercrime understand their exposure.
Disclaimer
HackerFeeds does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.