Researchers breach OpenAI systems using Anthropic models
The Financial Times reports that a security research company breached OpenAI's systems using AI tools developed by rival Anthropic. Claims are as reported; this summary makes no determination about accuracy or significance.
- First detected
- Sep 18, 2026
- Last updated
- Sep 18, 2026
Newly detected
This development was detected recently and reporting may still arrive.
Follow this development to see meaningful updates as new evidence emerges.
Save keeps this for later. Follow tracks meaningful changes as new evidence emerges — it shapes your Following Feed, alerts, and digest eligibility, and doesn't promise an instant notification.
Why it matters
The incident highlights how frontier AI models can be leveraged as offensive cyber tools against major AI vendors, demonstrating ongoing vulnerabilities in AI software supply chains and developer infrastructure.
Coverage
Source2 sources
Primary/vendor sources vs independent reporting
Primary / vendor source: information published directly by the company, organization, government body or project involved. Useful as a primary source, but not independent confirmation.
Independent reporting: reporting or analysis from a source independent of the organization making the underlying claim.
How this developed
Sep 18, 2026
Development detected
New reporting added
OpenAI breached by researchers using Anthropic modelsFinancial Times (AI)Source
New reporting added
Bug Hunters Used Claude to Hack OpenAIThe InformationSource
Related Intelligence
- DevelopmentDevelopingAlso involving Anthropic
Anthropic consolidates Claude Chat and Cowork into a unified product
Anthropic has consolidated Claude Chat and Cowork into a single product interface that automatically determines whether an input requires a direct response or an extended workflow. The release also incorporates Claude Docs and Claude Slides for in-chat document and presentation generation, initially rolling out to Pro and Max tier subscribers. Claims are as reported; this summary makes no determination about accuracy or significance.
3 independent sources - DevelopmentNewAlso involving OpenAI
Nvidia agrees to acquire Hugging Face
Nvidia is reportedly moving to acquire AI model repository and developer hub Hugging Face in a transaction valued at approximately $13 billion. The acquisition would bring the primary distribution platform for open-source and open-weight artificial intelligence models directly under the control of the dominant AI hardware vendor, integrating critical community software infrastructure with Nvidia's broader compute and networking stack. Claims are as reported; this summary makes no determination about accuracy or significance.
7 independent sources - DevelopmentDevelopingAlso involving Anthropic
Anthropic projects profitability for second consecutive quarter
The Financial Times reports that Anthropic has informed investors it expects to achieve profitability for a second consecutive quarter. The Claude developer is seeking to alleviate investor concerns regarding cash burn ahead of a planned initial public offering amid broader questions over the pace of artificial intelligence development. Claims are as reported; this summary makes no determination about accuracy or significance.
2 independent sources - DevelopmentDevelopingAlso involving Anthropic
Donald Trump rejects calls for AI development slowdown
The Financial Times reports that Donald Trump has rejected calls from technology executives demanding a slowdown in artificial intelligence development, denouncing regulatory proposals as concerns over the technology's risks become prominent in United States politics. Claims are as reported; this summary makes no determination about accuracy or significance.
3 independent sources