Promptfoo: LLM Red Teaming Against OWASP Top 10
Promptfoo is an open-source tool designed for red teaming LLM-powered products against the OWASP LLM Top 10 security vulnerabilities. The 2025 edition of the OWASP LLM Top 10 introduces new categories and revisions to better reflect real-world threats. Promptfoo, which has been adopted by many Fortune 500 companies, allows for the generation and evaluation of adversarial probes to enhance security measures.
- ▪The OWASP LLM Top 10 2025 includes significant updates, such as new categories and a reordering based on real-world incident data.
- ▪Promptfoo was acquired by OpenAI in March 2026 and is used by over 25% of Fortune 500 companies for LLM evaluation.
- ▪The tool separates adversarial probe generation from evaluation, ensuring sensitive data remains secure.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 1909290) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Jangwook Kim Posted on May 20 • Originally published at effloow.com Promptfoo: LLM Red Teaming Against OWASP Top 10 #security #llm #redteaming #owasp If you ship an LLM-powered product and have not run a structured red team against it, you are flying blind on security.
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