Proofpoint, a cybersecurity and compliance company, announced it has been selected to join the OpenAI Daybreak Cyber Partner Program, a collaborative initiative to help integrate advanced AI capabilities into defensive security operations. As a Daybreak Cyber Partner, Proofpoint can use GPT-5.5 within Proofpoint-managed products, services, and security workflows for customer-facing defensive use cases without giving customers direct access to OpenAI models. The collaboration will apply AI across threat investigation, alert enrichment, intelligence analysis, and incident response. Proofpoint is also expanding Satori, its agentic AI solutions, and currently leverages OpenAI models within Satori, anticipating that GPT-5.5 may unlock additional capabilities. Ryan Kalember, Chief Strategy Officer at Proofpoint, stated that organizations seek practical ways to apply AI to strengthen cyber defense while maintaining governance and safety controls. As part of Daybreak, Proofpoint and OpenAI will work together to advance best practices for AI governance, monitoring, safety controls, and abuse prevention.