Proofpoint has been selected for the OpenAI Daybreak Cyber Partner Program, the company said in a June 17 blog post. The program gives vetted cybersecurity firms governed access to frontier AI models, and Proofpoint’s entry coincides with the release of OpenAI’s newest model, GPT-5.5.
The company opened with its own research. Its 2026 AI and Human Risk Landscape report found that half of organizations have already had a confirmed or suspected AI-related security incident. Some 87 percent have moved AI assistants past the pilot stage. More than half are not fully confident their current controls would detect a compromised AI system.
Proofpoint says it will work with OpenAI to apply the technology to defensive jobs: speeding up threat investigations, enriching and ranking alerts, improving intelligence analysis, streamlining incident response and raising analyst productivity. The aim is to ease the load on security teams the company describes as already stretched.
Satori, Proofpoint’s agentic AI product, is part of the plan. It is built so that no alerts are missed and routine chores such as alert triage run “at machine speed.” Proofpoint already uses OpenAI models inside Satori and expects GPT-5.5 “may unlock additional capabilities.” The company did not say what those would be.
Access to a model is only part of it, Proofpoint wrote. Success depends on fitting the technology into security workflows with the governance, visibility and safeguards that enterprises require. The company said it and OpenAI share a commitment to approaches on AI governance, monitoring, safety controls and abuse prevention as AI sits deeper inside security operations.
Attackers have their own use for the technology, Proofpoint noted, from scaling social engineering to speeding up attacks and exploiting weaknesses across connected systems.
