Trail of Bits Adds Security Layer to MCP with Context Protector

Trail of Bits released mcp-context-protector, a lightweight proxy that secures AI apps using the Model Context Protocol. It blocks prompt injection attacks by enforcing manual approval of server changes, scanning tool outputs for unsafe content, and sanitizing hidden characters. The tool works with any MCP-compliant setup without requiring code changes. 

https://blog.trailofbits.com/2025/07/28/we-built-the-security-layer-mcp-always-needed

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