EchoLeak: The Zero-Click Nightmare Unleashed on Microsoft 365 Copilot
In an unprecedented move, Aim Labs discovered a zero-click vulnerability in Microsoft 365 Copilot, humorously dubbed “EchoLeak.” This bug can exfiltrate sensitive data with the ease of a simple email, no user interaction required. Microsoft’s Copilot, meet your newest uninvited guest—packaged in a neat little email.
Hot Take:
In the epic showdown of AI versus security, Microsoft’s Copilot seems to have taken a detour through the Bermuda Triangle, and Aim Labs is the brave adventurer shouting, “Land ho!” with the discovery of EchoLeak. Who knew that a simple email could turn into a data heist? It’s like finding out your helpful office assistant has a side gig as a corporate spy. Time to tighten the screws on those AI circuits, Microsoft!
Key Points:
- EchoLeak is a zero-click vulnerability discovered in Microsoft 365 Copilot.
- It allows attackers to exfiltrate data without user interaction.
- Vulnerability exploits RAG design flaws in AI systems.
- Discovered by Aim Labs using ‘Large language model (LLM) Scope Violation’.
- Microsoft patched the vulnerability in May 2025, months after being alerted.
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