Every security team evaluating AI protection is hearing the same pitch from the vendors they already own. CrowdStrike says the endpoint is the place to secure AI. Zscaler says the network is. Palo Alto Networks says its firewall estate extends to cover it. Each vendor is describing the architecture it already sells. 

Why AI Security Is Not an Endpoint, Network, or Firewall Problem examines why endpoint, network, and firewall architectures were built for a problem that came before AI agents, and why most enterprise AI executes where none of them can inspect it. 

In this guide, you'll learn: 

• Why most enterprise AI operates as cloud services, MCP server calls, and coordinating agents that reach no managed device, network path, or perimeter 

• How CrowdStrike ties AI enforcement to the Falcon sensor, and how much AI never appears on a managed endpoint at all 

• Why Zscaler inspects each transaction in isolation and cannot correlate the full execution chain where AI risk lives 

• Why Palo Alto Networks carries a deployment tax that has to be repeated for every cloud and application, and still delivers network inspection rather than AI security 

• The five questions to ask any AI security vendor before extending an existing solution to AI 

Download the buyer's guide to learn what to consider when evaluating these vendors and where their coverage ends.