All Breaches
August 9, 2019 Internet

Dataset Attributed to 51.com

This record describes a dataset attributed to 51.com and xx5.com, but the attribution has not been independently verified.

4.2 Million
Email Identifiers
1
Data Types
Critical
Exposure Scope
No
Verification

Exposed Data Types

1
Email addresses

Additional Information

Added DateAugust 13, 2026
Breach DateAugust 9, 2019
Domain51.com
SourceSealed third-party SQL corpus with an explicit user_email schema; attribution to 51.com and xx5.com remains unverified
Last Content UpdateAugust 13, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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Record Information

Record Name51.com
CategoryInternet
CountryChina
Related Websitewww.51.comArchived site

Risk Level

Critical

The reported impact exceeds 1 million and falls within the critical severity band.

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