{"slug": "grok-zero-click-attack-how-encrypted-prompt-injection-steals-chat-data", "title": "Grok Zero-Click Attack: How Encrypted Prompt Injection Steals Chat Data", "summary": "A newly disclosed vulnerability in xAI's Grok web chat can turn a routine 'summarize this page' request into a silent data exfiltration event, requiring no user interaction beyond the initial prompt. The attack steals the user's name, coarse location, subscription tier, and the entire prompt history of the active session, according to CyberUpdates365.", "body_md": "A newly disclosed artificial intelligence vulnerability can transform a routine “summarize this page” request in xAI’s Grok web chat into a silent data exfiltration event. The attack, which requires no user interaction beyond the initial prompt, is capable of stealing the user’s name, coarse location, subscription tier, and the entire prompt history of the active ... [Read more](https://cyberupdates365.com/grok-zero-click-attack-data-theft/)\n\nThe post [Grok Zero-Click Attack: How Encrypted Prompt Injection Steals Chat Data](https://cyberupdates365.com/grok-zero-click-attack-data-theft/) appeared first on [CyberUpdates365 | Latest Cybersecurity News & Vulnerabilities](https://cyberupdates365.com).", "url": "https://wpnews.pro/news/grok-zero-click-attack-how-encrypted-prompt-injection-steals-chat-data", "canonical_source": "https://cyberupdates365.com/grok-zero-click-attack-data-theft/", "published_at": "2026-08-23 07:31:03+00:00", "updated_at": "2026-08-23 07:43:25.854729+00:00", "lang": "en", "topics": ["ai-safety", "ai-ethics", "artificial-intelligence"], "entities": ["xAI", "Grok", "CyberUpdates365"], "alternates": {"html": "https://wpnews.pro/news/grok-zero-click-attack-how-encrypted-prompt-injection-steals-chat-data", "markdown": "https://wpnews.pro/news/grok-zero-click-attack-how-encrypted-prompt-injection-steals-chat-data.md", "text": "https://wpnews.pro/news/grok-zero-click-attack-how-encrypted-prompt-injection-steals-chat-data.txt", "jsonld": "https://wpnews.pro/news/grok-zero-click-attack-how-encrypted-prompt-injection-steals-chat-data.jsonld"}}