---
title: "Discussion on \"Microsoft 365 Copilot Hit by First Zero-Click AI Security Flaw\" | Hashnode"
description: "Discussion on \"Microsoft 365 Copilot Hit by First Zero-Click AI Security Flaw\". A new attack technique named EchoLeak has been described as a zero-click AI interaction vulnerability that allows attackers to steal sensitive data from Microsoft 365 (M365) Copilot without any user interaction.\nDetails of the Vulnerability\n\nVulnerab..."
url: "https://hashnode.com/posts/microsoft-365-copilot-hit-by-first-zero-click-ai-security-flaw/685ca93780e48cbfdee8acec"
---

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# [Microsoft 365 Copilot Hit by First Zero-Click AI Security Flaw](https://blog.fiscybersec.com/microsoft-365-copilot-hit-by-first-zero-click-ai-security-flaw?utm_source=hashnode&utm_medium=feed)

A new attack technique named EchoLeak has been described as a zero-click AI interaction vulnerability that allows attackers to steal sensitive data from Microsoft 365 (M365) Copilot without any user interaction. Details of the Vulnerability Vulnerab...

Jun 26, 2025 · 4 min read · blog.fiscybersec.com  
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-   [#colipot](https://hashnode.com/tag/colipot)
-   [#m365](https://hashnode.com/tag/m365)
-   [#vulnerability](https://hashnode.com/tag/vulnerability)
-   [#cve](https://hashnode.com/tag/cve)
-   [#threat-intelligence](https://hashnode.com/tag/threat-intelligence)
-   [#echoleak](https://hashnode.com/tag/echoleak)

## Written by

[Tran Hoang Phong](https://hashnode.com/@hiimshy21)

@hiimshy21 · Hanoi

  
[View profile](https://hashnode.com/@hiimshy21)

Hi im Shy

Just a SOC Analyst ^^

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