Bishop Fox joins OpenAI cyber defense network

Bishop Fox said Nov. 10, 2026, that it joined OpenAI’s Daybreak Defense Network and Trusted Access for Cyber program, gaining access to Daybreak Blue and Daybreak Red. The company plans to weave OpenAI GPT Cyber Models into offensive security work and its Cosmos platform to help customers find vulnerabilities, map attack paths and speed remediation.

Why it matters: - Bishop Fox is adding advanced OpenAI cyber models to offensive security services that many enterprises do not have the staff or infrastructure to build themselves. - The move could speed up vulnerability discovery, attack-path analysis and patch validation during customer engagements. - The company says the goal is not just more findings, but better prioritization of what actually matters to security teams.

What happened: - Bishop Fox announced it joined the OpenAI Daybreak Defense Network and will participate in OpenAI’s Trusted Access for Cyber program. - The company received access to Daybreak Blue and Daybreak Red. - Bishop Fox plans to integrate OpenAI GPT Cyber Models into its offensive security services and its Cosmos platform. - The announcement was made Nov. 10, 2026, from Tempe, Arizona.

The details: - Bishop Fox is one of a select group of companies granted access to the advanced cyber models for use in customer engagements. - The company will use the models to help customers uncover critical vulnerabilities, investigate complex attack paths and strengthen defenses. - Bishop Fox said the capabilities will span four areas: agentic penetration testing, agentic red teaming, AI-powered application security and continuous security testing. - Agentic penetration testing will expand vulnerability discovery, investigate attack paths and assess exploitability in customer-authorized environments. - Agentic red teaming will support realistic adversarial simulations so organizations can evaluate defensive controls. - AI-powered application security will identify and triage vulnerabilities across the software development lifecycle. - Continuous security testing will look for emerging exposures as customer environments change. - Bishop Fox said the AI-driven testing will be combined with the methodologies and judgment of its offensive security professionals. - The company said customers will get access to advanced OpenAI GPT Cyber Models through established offensive security engagements without having to build or operate the technology themselves. - Bishop Fox said it will use the models within customer-authorized testing workflows with safeguards and oversight. - The company said it will continue expanding use of the models across its offensive security portfolio. - Vinnie Liu, CEO and co-founder of Bishop Fox, said the network gives the company access to advanced cyber capabilities that are not broadly available. - Liu said the integration will help organizations uncover meaningful vulnerabilities, better understand exposure and stay ahead of evolving threats. - Rob Ragan, principal at Bishop Fox, said OpenAI GPT Cyber Models helped the company analyze an open-source vulnerability, investigate potential attack paths and validate a patch in a controlled environment. - Ragan said Bishop Fox was able to provide actionable findings and recommendations within hours. - David Habibian, head of cyber partner GTM at OpenAI, said the partnership is designed to help organizations validate findings, prioritize risks and turn them into fixes. - Bishop Fox’s website says the company provides AI-powered penetration testing, red teaming, continuous security testing and hardware, cloud, application and AI/LLM security assessments. - Bishop Fox says it protects 33% of the Fortune 100, eight of the top 10 global tech companies, all of the top five global media companies, 50% of the top 20 retailers and seven of the top 10 manufacturers. - The company says it has a 72 NPS rating, has been recognized as a Leader and "Fast Mover" in the GigaOm Radar for Attack Surface Management for five consecutive years and has released 25+ tools and 250+ technical research contributions in the last 10 years. - Bishop Fox also cited open-source tools including Sliver and AIMap.

Between the lines: - The partnership shows OpenAI’s cyber models moving from general capability into narrower enterprise security workflows. - Bishop Fox is positioning AI as an accelerator for expert-led testing, not a replacement for human judgment. - The emphasis on “customer-authorized” environments and safeguards suggests the company wants to frame the offering as controlled, practical and enterprise-ready.

What's next: - Bishop Fox plans to expand use of OpenAI GPT Cyber Models across more of its offensive security portfolio. - Customers will begin seeing the models embedded in offensive security engagements and Cosmos-based workflows. - Bishop Fox directed readers to its OpenAI Daybreak partner page for more information.

The bottom line: - Bishop Fox is turning OpenAI’s specialized cyber models into a new layer of offensive security services, aiming to help customers find, validate and prioritize threats faster.