The New Stack Podcast MCP Security Risks Multiply With Each New Agent Connection
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Aug 22, 2025 Tzvika Shneider, CEO and co-founder of Pynt, an innovative API security startup, dives into the pitfalls of the Model Context Protocol (MCP). He reveals how MCP, evolving from traditional APIs, is fraught with vulnerabilities as AI agents begin to connect. Shneider emphasizes that 72% of MCP plugins expose high-risk operations without proper validation. He points out that while MCP exploits are rare now, most organizations are ill-equipped to manage these security challenges. His insights underscore the urgent need to enhance security measures in this rapidly changing tech landscape.
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MCP Is The Next API Evolution
- MCP is the next evolution of APIs, wrapping applications so LLMs can interact with them via a standard protocol.
- That increases complexity and expands the attack surface across existing API-driven systems.
Agent Non-Determinism Breaks API Assumptions
- MCP calls are non-deterministic because agents reason and act autonomously, unlike traditional deterministic APIs.
- This unpredictability makes it harder to enforce standard security guardrails across interactions.
Risks Multiply When Agents Interact
- Pynt research found single MCPs carry measurable risk, but combined MCPs multiply danger rapidly.
- Three MCPs raised risk to ~51% and five MCPs pushed it above ~70% in their tests.