Mercor security incident history
Hacking, data breaches and other security incidents involving Mercor, with related coverage.
Incidents: 2 · Most recent
Mercor confirms data breach as attackers claim 4TB stolen
AI start-up Mercor confirmed a data breach in April 2026. The attackers claimed to have stolen 4TB of data. The actual extent of the leak and specific response measures have not been confirmed.
Related reports: 4 · last report →Mercor data breach raises fears of leaked AI company training data
Mercor said it had been hit by a cyber-attack linked to the compromise of the open-source LiteLLM project. Concerns were raised that the data breach could leak confidential training-related information of major AI companies. Meta temporarily suspended its work with Mercor following the breach.
Related reports: 2 · last report →