Cloud CISO Perspectives: Introducing new $250,000 tier for Google Cloud VRP (Q&A)

Google Cloud’s Cloud CISO Perspectives for October 2026 highlights the expansion of its Vulnerability Reward Program (VRP) with a new $250,000 top-tier reward for Root-in-Cloud findings. The program targets tenant-isolation bypasses and cross-service logic flaws, requiring human creativity and agentic tools to uncover complex vulnerabilities. Researchers must demonstrate full administrative control over arbitrary Google Cloud organizations or projects under strict technical criteria to qualify for the reward.

The update reflects the evolving security research landscape, where automated tools generate high volumes of low-impact reports while human-led investigations yield deeper insights. Google Cloud’s vulnerability reward program lead, Michael Cote, emphasized the importance of rewarding architectural intuition alongside agentic systems to strengthen cloud security for customers.

Michael Cote noted that while automated scanners have increased report volume, the number of valid vulnerabilities has remained stable over the past 18 months. The new tier aims to challenge researchers to deliver high-impact findings, such as tenant-isolation bypasses, which require advanced skills and deep system analysis.

To ensure safe testing, Google Cloud has defined technical criteria for validating root-in-cloud access without impacting production environments. Valid reports demonstrating remote code execution in Borg or root-in-prod access are automatically evaluated for Root-in-Cloud eligibility, with strict rules prohibiting escalation or lateral movement to protect service availability.