December 10, 2024 Verified Sensitive Record Business Services

Cierant 2024 Data Breach

The 2024 Cierant data breach resulted from exploitation of a vulnerability in the Cleo VLTrader file-transfer tool used by the company. Cierant detected the incident on December 10, 2024. The U.S.

232.5 Thousand

Affected People

Data Types

High

Severity

Yes

Verification

Exposed Data Types

Names

Physical addresses

Dates of birth

Provider names

Medical information

Medical record numbers

Health insurance information

Additional Information

Added DateAugust 3, 2026

Breach DateDecember 10, 2024

Domaincierant.com

SourceOfficial Cierant notice, HHS OCR, and independent breach reporting

Last Content UpdateAugust 3, 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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Cierant 2024 Data Breach

Exposed Data Types

Additional Information

Verification and editorial method

Company Information

Risk Level

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