Agents now live inside the enterprise
In a post titled "Securing the agentic insider," published on October 19, 2026, Microsoft frames AI agents working inside organizations as a new security category. Because these agents can reach email, files and business applications, they carry the potential to act like a malicious insider.
Focus on permissions and access
The core argument is that the permissions granted to agents should not be managed any differently from those of human employees. Which data an agent can reach, which actions it can take and who oversees those actions are presented as critical questions.
What it means for readers
As enterprise AI adoption grows, so do the risks of data leaks and unauthorized actions caused by agents. Microsoft's post is a reminder that organizations should plan security controls before deploying agents.
