AI Security After Codex and Claude Code — Zico Kolter & Matt Fredrikson, Gray Swan
Gray Swan (founded by CMU professors Zico Kolter and Matt Fredrikson) provides AI security solutions focused on the unique vulnerabilities of LLMs and agents, distinct from traditional cybersecurity. Their automated red-teaming system 'shade' is surpassing human red teamers at breaking models, and their guardrail filter 'signal' monitors both inbound untrusted content and outbound tool calls to enforce enterprise policies. The company argues that as coding agents like Claude Code and Codex become ubiquitous, correlated failures from shared model vulnerabilities pose a new class of exploit requiring dedicated security layers.