SecurityJul 15, 2026, 8:23 AM

Microsoft Copilot: Websites could secretly issue commands to the AI - Notebookcheck

30-second summary

A potential security flaw in Microsoft Copilot could allow malicious websites to secretly issue commands to the AI assistant, potentially compromising user data or actions without explicit consent.

TickrWire
Key takeaways
  • Microsoft Copilot reportedly has a vulnerability allowing websites to secretly issue commands.
  • This flaw could enable unauthorized actions or data access via the AI assistant.
  • The discovery underscores the importance of robust security measures for AI integrated into web browsers.
Full story

Reports indicate a potential security vulnerability within Microsoft Copilot where external websites might be able to surreptitiously inject commands into the AI assistant. This flaw could allow a malicious site to manipulate Copilot's behavior without the user's direct knowledge or interaction.

Such an exploit could lead to various privacy and security risks, including the potential for unauthorized data access, execution of unintended actions, or even the exfiltration of sensitive information if Copilot is configured to interact with user data.

While specific technical details or Microsoft's official response are not fully clear from the initial report, the discovery highlights ongoing challenges in securing AI systems that interact with web content and user environments.

Why this matters
Developers

Highlights the need for secure prompt engineering and input sanitization in AI integrations.

Businesses

Raises concerns about data privacy and potential misuse of AI tools in corporate environments.

Investors

Could impact user trust and adoption rates for AI products, affecting market perception.

Everyone

Users should be aware of potential security risks when interacting with AI assistants linked to web browsing.

Sources · 1
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