Major Australian banks including Commonwealth Bank and Westpac are using OpenAI’s GPT-5.5-Cyber model, also known as Daybreak, to test for cybersecurity vulnerabilities following Anthropic’s restriction of its Mythos tool
— Anthropic plans to brief the Reserve Bank of Australia on Mythos.
——0——
Sentiment
Pos66.7%
Neg33.3%
Many users welcome major banks deploying OpenAI Daybreak for cybersecurity as finally useful defense work and core infrastructure, while some dismiss it as mere enterprise PR or banks avoiding the hard parts.