Researchers used Claude to hack OpenAI
First reported Fri, 18 Sep 2026 13:30:12 GMT · Last updated

Cyber researchers broke into OpenAI using its key rival Anthropic’s software, highlighting vulnerabilities in the ChatGPT maker’s security as leading AI companies face mounting scrutiny over safety. A small cyber security group gained access to an OpenAI employee’s ChatGPT account, which permitted them to read private software information and suggest changes. The researchers had been given access to an Anthropic tool specifically designed for security professionals, and were paid for the work as part of a program to find vulnerabilities before they could be exploited by bad actors. Read full article Comments ]]>
1 source in this cluster
- Ars TechnicaResearchers used Claude to hack OpenAI
Cyber researchers broke into OpenAI using its key rival Anthropic’s software, highlighting vulnerabilities in the ChatGPT maker’s security as leading AI companies face mounting scrutiny over safety. A small cyber security group gained access to an OpenAI employee’s ChatGPT account, which permitted them to read private software information and suggest changes. The researchers had been given access to an Anthropic tool specifically designed for security professionals, and were paid for the work as part of a program to find vulnerabilities before they could be exploited by bad actors. Read full article Comments ]]>
Fri, 18 Sep 2026 13:30:12 GMT
Timeline
- 2026-09-18 13:30Ars Technica — Researchers used Claude to hack OpenAI
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