Mercor
Disclosed Mar 31, 20265 months agoUnverified
AI training data contractor hit via compromised LiteLLM open source package
Mercor, which supplies expert-generated training data to AI labs, confirmed a security incident tied to TeamPCP's compromise of the LiteLLM project while Lapsus$ claimed to hold its data. WIRED reported Meta paused work with Mercor over fears proprietary training datasets were exposed.
What is known
| People affected | Not stated in the sources we have |
|---|---|
| Disclosed | Mar 31, 2026 |
| Attack | Supply chain |
| Data exposed | Training data, Internal documents |
| Sector | AI · US |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
Sources
| Source | |
|---|---|
| Meta Pauses Work With Mercor After Data Breach Puts AI Industry Secrets at Riskdatabreaches.net · News | News |
| Mercor says it was hit by cyberattack tied to compromise of open source LiteLLM projecttechcrunch.com · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Mar 31 |
History of this record
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.