National Cyber Warfare Foundation (NCWF)

Microsoft 365 Copilot Flaw Lets Hackers Steal Sensitive Data via Indirect Prompt Injection


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2025-10-21 13:53:08
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Red Team (CNA)

 A vulnerability in Microsoft 365 Copilot allowed attackers to trick the AI assistant into fetching and exfiltrating sensitive tenant data by hiding instructions in a document. The AI then encoded the data into a malicious Mermaid diagram that, when clicked, sent the stolen information to an attacker’s server. When Microsoft 365 Copilot was asked to […]


The post Microsoft 365 Copilot Flaw Lets Hackers Steal Sensitive Data via Indirect Prompt Injection appeared first on GBHackers Security | #1 Globally Trusted Cyber Security News Platform.



Divya

Source: gbHackers
Source Link: https://gbhackers.com/microsoft-365-copilot-flaw/


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