MCP: The De Facto Standard for LLM Integrations—But at What Cost?

The Model Context Protocol (MCP) has quickly become the de facto standard for integrating third-party tools and data with LLMs. However, this convenience comes with significant security and privacy risks. This post details several vulnerabilities, including inadequate authentication, the execution of user-supplied code, and the inherent limitations of LLMs in handling large datasets and autonomy. MCP can lead to sensitive data leakage and unintended data aggregation, posing challenges for enterprise security. The author argues that developers, applications, and users must work together to improve MCP's security and use it cautiously to mitigate potential risks.