'Yellow Teams' Are Defining the Future of AI Security

The article explains how "yellow" teams—engineering groups that build frameworks and harnesses around advanced AI models like Anthropic Mythos and GPT-5.5—are shaping the future of cybersecurity by enabling red teams to automate vulnerability discovery and helping blue teams integrate AI findings into patching and the software development lifecycle. It discusses different harness implementations (Cisco Foundry, Microsoft MDASH, Cloudflare), workflows combining automated agents with human analysis, and the need for closer collaboration across red, blue, and yellow teams to handle the volume and complexity of AI-driven findings.