All Breaches
January 7, 2019 Credential Collection

Collection #1 Alleged Data Exposure

The Collection #1 incident is a large collection of credentials that was revealed in January 2019.

772.9 Million
Email Identifiers
2
Data Types
Critical
Exposure Scope
No
Verification

Exposed Data Types

2
Email addresses
Passwords

Additional Information

Added DateJanuary 16, 2019
Breach DateJanuary 7, 2019
SourceUnverified breach record
Last Content UpdateSeptember 17, 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 NameCollection #1
CategoryCredential Collection

Risk Level

Critical

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

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