> Sneaky Mermaid attack in Microsoft 365 Copilot steals data
[AUTHOR: Jessica Lyons]
[DATE: 24/10/2025 18:58]
[LANGUAGE: EN]
Redmond says it's fixed this particular indirect prompt injection vuln Microsoft fixed a security hole in Microsoft 365 Copilot that allowed attackers to trick the AI assistant into stealing sensitive tenant data – like emails – via indirect prompt injection attacks.…