AI models on realistic cyber ranges

This post details the advancement of AI models, specifically Claude Sonnet 4.5, in succeeding at multistage cyberattacks on networks with dozens of hosts using only standard, open-source tools. This represents a significant step from previous generations that required custom toolkits. The post highlights the model's ability to autonomously recognize and exploit publicized CVEs, as demonstrated by its success in simulating the Equifax data breach. It also notes that while not always successful, the trajectory shows AI models are rapidly reducing barriers to autonomous cyber workflows, underscoring the importance of security fundamentals like prompt patching.