According to CoinMeta, the quantitative trading department under Point72 Asset Management sued former research analyst Xin Jin in the state court of Stamford, Connecticut on Monday. Cubist accused Xin Jin of using Anthropic PBC's Claude and OpenAI's Codex to steal proprietary source code with the aim of joining a competitor. The company's investigation determined that Xin Jin attempted to steal confidential, proprietary, and competitively sensitive information, and they were fired in September.