# Grok exfiltrates user data when malicious instructions are encrypted

**Published:** August 20, 2026
**Author:** Dan Goodin
**Source:** Ars Technica — AI
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/grok-exfiltrates-user-data-when-malicious-instructions-are-encrypted

Earlier this week, researchers outlined an attack that used a secret input provided by Microsoft 365 Copilot for enterprise to cause the AI assistant to exfiltrate a password present in the user’s inbox. Now, a separate team has devised a similar attack against Grok. The new…

> From the original source: **Ars Technica — AI**
> [Read full article at Ars Technica — AI](https://arstechnica.com/security/2026/08/grok-exfiltrates-user-data-when-malicious-instructions-are-encrypted/)

**Tags:** #Илон Маск #Microsoft

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