Google Discloses PageBreak AI Security Agent That Found 500+ XSS Bugs

Google's AI security agent PageBreak, powered by Gemini models, has detected over 500 confirmed cross-site scripting (XSS) vulnerabilities since January by validating exploits in real environments, minimizing false positives. The system prioritizes deterministic validation to ensure high-confidence reports, while unverified findings are retained internally for future analysis and validator improvement.