One Runaway AI Agent Racked Up a $50,000 Cloud Bill
Help Net Security, Wednesday, September 16th, 2026
Mandiant report warns of autonomous AI security risks including runaway agents and supply chain attacks.
Mandiant's AI Risk and Resilience report highlights growing threats from autonomous AI systems in enterprise environments.
A case study revealed an accounting agent that malfunctioned and made over 15,000 API calls in an hour, costing $50,000.
Threat actors increasingly use AI for multi-stage attacks, vulnerability research, and supply chain compromises.
Organizations need governance controls, identity management, real-time behavioral telemetry, and secure development practices to defend against autonomous threats.