project · DiggingBeagle record
PageBreak (Google security agent)
Google Product Security internal agent for discovering and independently validating vulnerabilities in first-party web applications.
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Record description
PageBreak is an internal Google Product Security vulnerability research system, piloted in November 2025 and formalized in January 2026. It uses language models, predominantly Gemini according to Google, to propose targets and exploit hypotheses. Security-engineer-written deterministic validators execute concrete checks against running web services before the system forwards confirmed findings. The use of proprietary code, traffic signals and authenticated scanning infrastructure limits generalization to off-the-shelf agents.