Core Viewpoint - The article highlights the emerging security risks associated with the widespread deployment of the MCP (Multi-Channel Protocol), particularly the "lethal trifecta" attack model that combines prompt injection, sensitive data access, and information exfiltration, posing significant threats to SQL databases and other sensitive systems [1][3][15]. Group 1: MCP Deployment and Popularity - The MCP was quietly released at the end of 2024, gaining rapid traction with over 1,000 servers online by early 2025, and significant interest on platforms like GitHub, where related projects received over 33,000 stars [2][3]. - Major tech companies, including Google, OpenAI, and Microsoft, quickly integrated MCP into their ecosystems, leading to a surge in the creation of MCP servers by developers due to its simplicity and effectiveness [2][3]. Group 2: Security Risks and Attack Mechanisms - General Analysis identified a new attack pattern facilitated by MCP's architecture, where attackers can exploit prompt injection to gain unauthorized access to sensitive data [3][4]. - A specific case involving Supabase MCP demonstrated how an attacker could insert a seemingly benign message into a customer support ticket, prompting the MCP agent to leak sensitive integration tokens [4][6]. - The attack process was completed in under 30 seconds, highlighting the speed and stealth of such vulnerabilities, which can occur without triggering alarms or requiring elevated privileges [4][8]. Group 3: Architectural Issues and Recommendations - The article emphasizes that the security issues with MCP are not merely software bugs but fundamental architectural problems that need to be addressed at the system level [12][15]. - Supabase's CEO reiterated that MCP should not be connected to production databases, a caution that applies universally to all MCP implementations [13][14]. - The integration of OAuth with MCP has been criticized for not adequately addressing the security needs of AI agents, leading to potential vulnerabilities in how sensitive data is accessed and managed [17][20]. Group 4: Future Considerations and Industry Response - The article suggests that the current challenges with MCP require a reevaluation of security protocols and practices as the industry moves towards more integrated AI solutions [21]. - Experts believe that while the integration of different protocols like OAuth and MCP presents challenges, it is a necessary evolution that will ultimately succeed with ongoing feedback and adjustments [21].