Meta has suspended its collaboration with AI training startup Mercor after a recent data breach and has launched an internal investigation into the incident, according to a person familiar with the matter.
Mercor confirmed it was affected by a security issue, later identifying it as part of a wider supply chain attack linked to the open-source project LiteLLM.
The company, which was valued at $10 billion in a recent funding round, works with major technology firms by supplying large-scale training data for AI models, relying on thousands of human contractors and domain experts.
Following the breach, Mercor stated that its security team moved quickly to contain and mitigate the impact and is now conducting a comprehensive investigation with the help of external forensic specialists to determine the extent of the exposure and any potential risks to its clients and data pipelines.