# Security researchers used Anthropic's Claude to breach OpenAI, Forbes reports

Forbes reported that cybersecurity researchers breached OpenAI's internal system using Anthropic's Claude as part of a bug bounty program.

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Source: Forbes · Published 9/21/2026, 11:54:04

**Forbes** said a group of cybersecurity researchers managed to breach **OpenAI**'s internal system using rival **Anthropic**'s Claude AI software as part of a bug bounty program. The post did not name the researchers or give a timeframe for the activity.

Tags: OpenAI, Anthropic, Claude, Cybersecurity, Bug bounty

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