Japan's Megabanks Eye OpenAI Model to Strengthen Cyber Defences

# Japan's Megabanks Eye OpenAI Model to Strengthen Cyber Defences Source: [https://www.ibtimes.sg/japans-megabanks-eye-openai-model-strengthen-cyber-defences-87114](https://www.ibtimes.sg/japans-megabanks-eye-openai-model-strengthen-cyber-defences-87114) Japan's three largest banks are expected to gain access to a new artificial intelligence \(AI\) model developed by OpenAI as part of efforts to reinforce cybersecurity systems against increasingly sophisticated digital threats\. MUFG Bank, Sumitomo Mitsui Banking Corp\. and Mizuho Bank plan to use the technology to strengthen protection against cyberattacks\. The[AI model](https://www.ibtimes.sg/white-house-plans-ai-safety-testing-framework-openai-anthropic-before-model-releases-86704), developed by the company behind ChatGPT, is reportedly accessible only to a select group of trusted partners\. According to a report by the[Nikkei](https://asia.nikkei.com/business/technology/artificial-intelligence/top-japanese-banks-to-use-openai-s-new-model-against-cyberattacks)newspaper, OpenAI's latest model is believed to possess capabilities comparable to Claude Mythos, a cybersecurity\-focused AI model developed by US\-based startup Anthropic\. The technology is said to be highly effective at identifying vulnerabilities in software systems and spotting potential security risks\. The three megabanks are also expected to obtain access to Claude Mythos to further strengthen their cyber defences by combining advanced tools from multiple AI developers\. Earlier this month, it was reported that the banks were preparing to adopt Anthropic's model as part of broader efforts to modernise digital security\. The push comes as Japanese regulators warn financial institutions about emerging risks linked to AI\. The Financial Services Agency and the Bank of Japan have urged banks to tighten cybersecurity safeguards amid concerns that malicious actors could exploit advanced AI systems to launch more complex[cyberattacks\.](https://www.ibtimes.sg/github-investigates-major-hack-claim-teampcp-offers-4000-private-code-repositories-sale-86684) In a related move, Japan's finance minister recently announced plans to establish a public\-private working group aimed at assessing cybersecurity threats to the country's financial system stemming from AI technologies, including[Claude Mythos](https://www.ibtimes.sg/why-anthropic-holding-back-claude-mythos-cybersecurity-risks-force-new-approach-85379)\. The development highlights how major financial institutions are increasingly turning to AI not only to improve operations but also to counter rapidly evolving cyber risks that traditional security systems may struggle to contain\. ### OpenAI, Google and Anthropic Freepik AI companies are increasingly competing to strengthen enterprise cybersecurity as cybercriminals adopt AI tools to identify and exploit software vulnerabilities more rapidly\. OpenAI recently introduced[Daybreak](https://www.ibtimes.sg/openais-daybreak-targets-cyber-threats-google-finds-hackers-using-ai-too-86330), a cybersecurity initiative focused on integrating security measures directly into software development rather than relying on fixes after vulnerabilities emerge\. Powered by its Codex Security agent, the platform is designed to help enterprises quickly identify high\-risk flaws, generate and test patches, and produce audit\-ready documentation\. OpenAI said Daybreak combines AI\-powered code review, threat modelling, dependency risk analysis and remediation tools to help organisations build more secure software from the outset\. Anthropic, for its part, has expanded[Project Glasswing](https://www.ibtimes.sg/anthropics-claude-mythos-preview-uncovers-10000-high-risk-software-vulnerabilities-50-partners-86807), a cybersecurity initiative powered by its unreleased Claude Mythos Preview model\. The company said nearly 50 cybersecurity and infrastructure partners using the system have already uncovered more than 10,000 high\- and critical\-severity vulnerabilities in major software systems\. According to Anthropic, AI is reshaping software security by dramatically increasing the speed of vulnerability detection, shifting the main challenge from finding flaws to verifying, disclosing and patching them quickly\. Meanwhile, Google launched[AI Threat Defense](https://www.ibtimes.sg/google-launches-ai-threat-defense-cybersecurity-race-heats-openai-anthropic-87064), an AI\-driven cybersecurity platform designed to help enterprises respond to increasingly sophisticated cyberattacks\. According to Francis deSouza, Chief Operating Officer of Google Cloud and President of Security Products, the system functions as an "always\-on autonomous security platform" capable of predicting attack pathways, prioritising risks and accelerating security fixes before hackers can exploit weaknesses\. Google said traditional cybersecurity systems are struggling to keep pace with what it described as AI\-powered, high\-speed attacks\.