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3 guys hacked OpenAI using a rival Anthropic model. Here's what it shows about frontier ...
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Fusion42 · 23 September 2026 · Fusion42 review
Three cybersecurity researchers from India used Anthropic's advanced AI model Claude to exploit vulnerabilities in OpenAI's community forum, gaining unauthorized access to certain OpenAI user accounts including internal communications. This incident highlights how rapidly advancing AI capabilities can empower more efficient and potent cyberattacks, especially via third-party service dependencies.
This Wire brief sits within Fusion42's coverage of AI & ML, and 6 sources have reported it between 9 Sep 2026 and 27 Sep 2026.
◆ ◆ The Wire takeaway
You must treat AI model security like a constant breach risk as rival AI tools now empower hackers far faster and deeper than before. Focus on eliminating third-party service vulnerabilities that cascade into your core user data now.
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6 sources · first reported 9 Sep 2026 · latest 27 Sep 2026
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