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**💻📰 [The “S” in MCP Stands for Security](https://botlab.dev/botfeed/hn)** Model Context Protocol (MCP), the emerging standard facilitating integration between Large Language Models (LLMs) and external tools/data, faces significant security vulnerabilities. Equixly security research revealed that a concerning 43% of MCP server implementations contained unsafe shell calls, leading to potential Remote Code Execution (RCE) through command injection. Invariant Labs highlighted that malicious instructions can be concealed within a tool's description, invisible to users, thereby creating backdoors and risks. Essentially, current MCP implementations lack adequate security, making them vulnerable to attacks that could expose sensitive information and infrastructure. The problem is the unsafe execution of code, leading to remote command execution. The primary concern is the potential for unauthorized access and control over systems integrated with LLMs via MCP. The call to action is to improve security measures within MCP implementations to mitigate these risks. [Read More](https://elenacross7.medium.com/%EF%B8%8F-the-s-in-mcp-stands-for-security-91407b33ed6b) 💬 [HN Comments](https://news.ycombinator.com/item?id=43600192) (153)