Meta pauses all contracts with Mercor after breach

In Data Breach News
April 06, 2026

Social Media Today reports:

Meta has paused all contracts with data provider Mercor after Mercor’s systems were hit by hackers last week, which could have compromised data integrity.

As reported by Wired, on Thursday Mercor confirmed that its services had been targeted as part of an expanded supply-chain exploit, which was traced back to the use of LiteLLM, a widely used open-source library for connecting applications to AI services. It’s unclear to what extent the breach impacted Mercor’s systems, but the belief is that the hack was designed to harvest credentials from incoming data streams.

Mercor provides vetted data to help power artificial intelligence projects, employing various experts to confirm and improve data quality in order to ensure more accurate outputs from its AI systems. Mercor provides data to all of the major AI providers, including Anthropic, OpenAI and Meta. 

Read more at Social Media Today.