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AI & Enterprise

KISA begins testing OpenAI\'s GPT-5.5 Cyber as Mythos access nears

South Korea has begun testing an AI cybersecurity frontier model to set the government\'s response direction to AI security threats and apply results to industry. The Korea Internet & Security Agency (KISA) under the Ministry of Science and ICT has entered tests of OpenAI\'s \'GPT-5.5 Cyber\'. KISA is verifying whether the model can be used to identify and respond to threats and may expand use to software and infrastructure checks. KISA is also moving to secure access to Anthropic\'s Mythos model.

AI & Enterprise

U.S. government cuts deadline to 3 days for most critical cyber flaws amid AI attacks

The U.S. Cybersecurity and Infrastructure Security Agency has issued new guidance requiring federal agencies to address the most severe vulnerabilities within as little as three days. The policy shifts vulnerability management from a uniform approach to risk-based prioritisation, focusing first on flaws with high likelihood of exploitation and large potential impact. CISA said only 1 percent of vulnerabilities would fall under the three-day rule, while lower-risk issues could follow regular patch cycles.

AI & Enterprise

AI security technology surges to counter AI-driven attacks

Security companies are accelerating efforts to counter threats that exploit AI models, with momentum building around agentic AI-based security. Zscaler introduced two security products for AI agents and an AI Access Graph, while Check Point launched agent-based exposure validation. Concerns are rising over a “patch gap” as AI can find vulnerabilities and write attack code within hours. Companies including Rubrik, Samsung SDS and others also announced new products and partnerships.