Microsoft Built a System to Watch Its AI Agents. That's the Story.
On October 19, Microsoft announced Guardian Agents — security tools that treat autonomous AI agents like insider threats. The company's security chief wrote that 'frontier models can't be trusted.' Microsoft is the largest enterprise AI vendor on Earth. When they build a surveillance layer for their own products, they're not issuing a warning. They're making a confession.
AI agentsMicrosoftenterprise AIagent trustagent verificationGuardian Agentssecurity2026