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Grok Zero-Click Attack Steals Chat Data Using Encrypted Prompt Injection

Summary by cybernoz.com
A newly disclosed attack can turn a routine “summarize this page” request in xAI’s Grok web chat into a silent theft of the user’s name, coarse location, subscription tier, and the prompt history of the active conversation. Adversa AI said in a report shared with Cyber Security News (CSN) that the method, named Cryptographic Context Injection, hides attacker commands inside AES-256-GCM ciphertext so input filters never read them, then induces th…
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Cyber Security News broke the news on Saturday, August 22, 2026.
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