In April 2026, Anthropic quietly triggered a global security panic with the introduction of Claude Mythos. This is not another conversational chatbot designed to write blog posts or summarize PDFs. It is the first widely acknowledged frontier model that crosses the critical boundary from generating information to actively manipulating real-world digital infrastructure. Within days of its existence becoming known, governments convened emergency briefings, and major tech firms were granted highly restricted access under a veil of secrecy.