AnalysisCybersecurityAugust 20, 2026

Grok exfiltrates user data via encrypted prompt injection

Read original source →arstechnica.com

Researchers at security firm Adversa devised an attack that encrypts malicious instructions to bypass Grok's guardrails, forcing the LLM to exfiltrate user chats and personal data. xAI was informed in June, but the vulnerability remained unfixed at publication.

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