[Discussion] OpenAI Gives Ukraine Access to Daybreak AI Cyber-Defense Tool

Ukraine Gains Access to Daybreak

OpenAI will provide the Ukrainian government with access to Daybreak, an AI-based cyber-defense program designed to identify software vulnerabilities and help teams develop and test fixes more quickly.

The initiative will support the Ministry of Digital Transformation’s efforts to protect civilian infrastructure, including hospital systems, energy networks, telecommunications and government services. OpenAI announced the arrangement on September 23, 2026, on the sidelines of the UN General Assembly.

Dmytro Kushneruk, Ukraine’s consul general in San Francisco, and Sasha Baker, OpenAI’s head of national security policy, jointly announced the offer. Financial terms and a deployment schedule were not disclosed.

Focus on Civilian Infrastructure

Ukraine continues to face cyberattacks alongside physical attacks on its infrastructure. CERT-UA, the country’s national cyber incident response team, handled nearly 6,000 cyber incidents during 2025.

Daybreak is intended for authorized defensive security work. Ukrainian teams will be able to use it to review older software, investigate suspicious activity, locate coding flaws, assess whether suspected vulnerabilities can be exploited, and verify that proposed patches close the identified gaps.

“We are proud to support Ukraine’s cyber defenders, who are protecting essential services against attacks every day,” Baker said. “Ukraine is already on the front line, and its defenders need support now.”

AI-Assisted Vulnerability Testing

Daybreak uses OpenAI’s GPT-5.6 Sol large language model to analyze software and code. Its functions cover multiple stages of vulnerability management, including finding potential weaknesses, validating whether they pose a practical threat, and testing fixes before deployment.

George Osborne, OpenAI’s head for countries, said the project would help Ukraine defend infrastructure against both digital and physical threats. “We’re now putting our technology and resources behind that effort, helping the Ukrainian government strengthen its cyber defenses with AI,” he said.

The program follows OpenAI’s September 3 pledge to provide $1 billion in subsidized Daybreak access to resource-constrained cyber defenders worldwide. The company said at the time that access would expand to partner countries within weeks.

Previous European Deployments

OpenAI has already provided cyber agencies and defenders in France, Germany, Poland and other European countries with access to its models.

The European Union Agency for Cybersecurity, ENISA, used the technology to identify vulnerabilities in software deployed across EU institutions. Those flaws have since been fixed.

Poland’s national cyber agency, CERT Polska, also used OpenAI models to discover six vulnerabilities in third-party commercial router software. The vendor released patches, and CERT Polska confirmed that the fixes prevented the attacks it had observed.

OpenAI’s Changing Security Role

The Ukraine initiative reflects OpenAI’s growing involvement in government and national-security cybersecurity programs. Until January 2024, the company’s usage policy prohibited military and warfare activity. That language was removed shortly before executives disclosed that OpenAI was developing cybersecurity tools with the Pentagon.

Some researchers have noted that technology companies supporting Ukraine may also gain information from operating in an active conflict environment. Jamie MacColl of the Royal United Services Institute told the BBC that it was “no surprise that OpenAI is now also providing defensive cybersecurity services.” The announced Daybreak access is specifically directed at protecting Ukraine’s civilian infrastructure.

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