Why AI Agents and MCP Servers Just Became a CISO’s Most Urgent Priority
Over the last year, I’ve spent countless hours with CISOs, CTOs, and security architects talking about a new wave of technology that’s changing the game faster than anything we’ve seen before: Agentic AI and Model Context Protocol (MCP) servers.
If you think AI is still in the “cool demos and pilot projects” stage, think again. We’re already seeing autonomous agents reasoning, remembering, and taking actions in live production environments. MCP servers are quietly becoming the central nervous system for these agents, brokering instructions, accessing tools, and orchestrating API calls across your systems.
This is no longer an “emerging tech” conversation. It’s a real risk surface conversation. And it’s all powered by APIs.
Why APIs Are Now the Front LineEvery AI agent and MCP server interaction runs on APIs. Those APIs pull data from customer records, update transaction systems, initiate workflows, and often do so without a human in the loop.
Here’s the problem:
- Most current security tooling, like WAFs, API gateways, CDNs, and LLM security wrappers can’t see all of this API traffic.
- The API calls between an MCP server and your internal or third-party data sources often happen deep inside your environment, bypassing the “edge” where traditional tools sit.
- Many of these APIs are new, undocumented, or dynamic, created on the fly as agents take new actions.
Without real-time visibility into this API fabric, you’re blind to:
- What data agents are accessing
- Whether they’re staying within policy
- If an attacker has hijacked an agent or exploited an API to breach your system
For CISOs, this is a perfect storm: a technology that’s moving faster than your governance frameworks, with attack surfaces multiplying overnight, all in a domain (APIs) where most organizations already struggle to get full visibility.
The “just secure the AI model” approach doesn’t work here. The model isn’t the thing taking actions; the APIs are. If you don’t secure them, you don’t secure the AI. Period.
The 5 Questions Every CISO Should Be Asking Right NowWhen I meet with CISOs today, these are the five questions I tell them to put on the table immediately:
- Do we have an accurate, up-to-date inventory of every API our AI agents and MCP servers are using? If you don’t know what you have, you can’t protect it.
- Can we see API traffic between our MCP servers, AI agents, and all internal/third-party data sources in real time? Edge-only visibility isn’t enough. You need to see the whole API fabric.
- Are our governance and policy controls applied at the API level for AI-driven actions? An AI agent can violate policy just as easily as a human, maybe faster.
- Do we have threat detection tuned for AI-driven API attacks and abuse patterns? This is not “just another OWASP Top 10” problem. Agentic AI creates new classes of attacks.
- How fast can we identify and stop a rogue agent or compromised MCP server before it impacts data or systems? Containment speed is everything once something goes wrong.
At Salt, we’ve been securing APIs since before “API security” was even a market category. Our platform gives you:
- Complete visibility into all API traffic, including the traffic no other tool sees between MCP servers, AI agents, and data sources.
- Continuous discovery so you’re never blindsided by a new or shadow API.
- Real-time threat detection and blocking built for modern API abuse patterns, including those driven by AI agents.
- Governance at scale, so your policies follow the API, no matter how dynamic your environment gets.
If Agentic AI is your new competitive advantage, API security is your new survival strategy. You can’t slow the technology down, but you can be ready for it.
Final ThoughtAgentic AI and MCP servers are reshaping the attack surface, whether we like it or not. The organizations that thrive in this new reality will be the ones that treat API security as core infrastructure and not an afterthought. If you’re not already asking the five questions above, now is the time to start.
If your team is exploring agentic AI and wants to talk about securing the foundation it runs on, let’s connect. Request a demo now, and I’ll have one of our AI security experts reach out to you directly.
Also, we are hosting a webinar on August 28 to explore these topics in more depth. You can register for the webinar here.
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