How to Secure Your AI Agent API Keys Against QUIETVAULT-Style Credential Stealers
Mandiant’s M-Trends 2026 report, published today, documented a new credential stealer called QUIETVAULT that specifically targets AI CLI configurations and API tokens — the exact secrets that autonomous agent pipelines depend on. This isn’t theoretical. The attack surface is real, and if you’re running AI agents with stored API keys, you should address this today. This guide covers practical, actionable hardening steps for AI developers and operators running agent stacks like OpenClaw, Anthropic Claude CLI, OpenAI CLI, or similar frameworks. ...