Microsoft can't kill dogged researcher's Copilot for Word worm
Source: iTnews· July 31, 2026
SynaBot summary
A security researcher successfully created a self-propagating worm targeting Microsoft Copilot for Word. Despite Microsoft's attempts to patch it, the prompt injection attack continues to evade detection and removal, highlighting ongoing vulnerabilities.
Key takeaways
- Prompt injection attacks remain a significant security challenge.
- Microsoft Copilot for Word is susceptible to self-propagating worms.
- Vendor patching efforts have not fully resolved the issue.
- Data security risks persist for AI-assisted document creation.
Why it matters
This persistent vulnerability means sensitive data within documents could be compromised by malicious actors. Users of AI-powered productivity tools need to be aware of these risks and potential data leaks, even with vendor security updates.
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