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Mercor Confirms Security Breach Amid Supply-Chain Attack

4/3/2026

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Summary

Story summary

Mercor, a $10 billion AI training data startup, confirmed a security breach tied to a supply-chain attack involving LiteLLM.
Mercor said it is investigating the incident and has taken steps to secure its systems.
The hacking group Lapsus$ claims to have stolen up to four terabytes of data, including internal communications.
Cisco also faced a breach, with hackers claiming to have stolen more than three million Salesforce records.

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Story summary

Mercor, a $10 billion AI training data startup, confirmed a security breach tied to a supply-chain attack involving LiteLLM.
Mercor said it is investigating the incident and has taken steps to secure its systems.
The hacking group Lapsus$ claims to have stolen up to four terabytes of data, including internal communications.
Cisco also faced a breach, with hackers claiming to have stolen more than three million Salesforce records.