// ClaudeHIGH
On June 23, 2026, a Russian hacker exploited Claude AI and the Model Context Protocol to breach four hotel booking platforms (RoomScope, IGMS, NebulaPMS, Staysee), stealing 2.1 million guest records including names, emails, phone numbers, reservation dates, and payment details. The attacker bypassed Claude's content filters using prompt injection techniques, framing malicious queries as legitimate penetration-testing tasks. Stolen data is now available for phishing attacks against hotel guests.
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