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Microsoft Copilot Cowork Exfiltrates Files

BACKGROUND
1 SIGNALFIRST DETECTED 25 May 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
25 May
Microsoft Copilot Cowork Exfiltrates Files
REPORT · WHAT · Hacker News Best (RSS)
Other feeds and industry voices
15 Jun
New attack turned Microsoft 365 Copilot into 1-click data theft tool

A critical vulnerability chain dubbed SearchLeak in Microsoft 365 Copilot Enterprise could allow attackers to steal sensitive data from a target's mailbox, OneDrive, or SharePoint

REPORT · WHAT · BleepingComputerOPEN STORY
1 Apr
What Is Copilot Exactly?

<a href="https://news.ycombinator.com/item?id=47603231">Comments</a>

REPORT · WHAT · Hacker News Best (RSS)OPEN STORY
18 Aug
Microsoft Copilot Personal Flaws Could Let One Click Exfiltrate Data From Connected Apps

Varonis Threat Labs has disclosed three vulnerabilities in Microsoft Copilot Personal that it said could allow a single click on a crafted link to silently pull data from

REPORT · WHO · The Hacker NewsOPEN STORY
13 Apr
Microsoft isn't removing Copilot from Windows 11, it's just renaming it

<a href="https://news.ycombinator.com/item?id=47751936">Comments</a>

REPORT · WHAT · Hacker News Best (RSS)OPEN STORY
18 Aug
Microsoft Copilot reveals secret input that allowed it to be hacked

<table> <tr><td> <a href="https://www.reddit.com/r/singularity/comments/1vrtrrh/microsoft_copilot_reveals_secret_input_that/"> <img alt="Microsoft Copilot reveals secret input

OPINION · WHAT · singularityOPEN STORY
14 May
Mystery Microsoft bug leaker keeps the zero-days coming

<a href="https://news.ycombinator.com/item?id=48129789">Comments</a>

REPORT · WHAT · Hacker News Best (RSS)OPEN STORY
18 Jun
Copilot vulnerability could expose emails and 2FA codes

&#32; submitted by &#32; <a href="https://www.reddit.com/user/ImpressiveFudge2350"> /u/ImpressiveFudge2350 </a> <br /> <span><a

OPINION · WHAT · singularityOPEN STORY
Sources
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