What is Anthropic’s new AI tool that wiped off billions from cybersecurity stocks

Anthropic’s new AI tool, Claude Code Security, scans for code vulnerabilities, prompting a multi-billion dollar stock market crash in the cybersecurity sector. While existing scanners use pattern matching, this AI reasons like a human researcher, identifying complex flaws. Despite its research preview status and human oversight requirement for fixes, the market reacted sharply to the potential disruption.