Radio With No Radar: Why Agent Runtime Security Fails Without the Layers Beneath It

Many agent security products claim to stop malicious actions in real time. However, this promise only holds true for agents whose traffic passes through a gateway owned by the enterprise. Most agents do not touch such a gateway, creating a gap in security. A recent case illustrates this gap, where an employee used an AI assistant to trigger a mass-email automation. This example highlights the limitations of agent runtime security when it lacks the underlying layers of protection. The lack of visibility and control over agent traffic that does not pass through an enterprise-owned gateway can hinder the effectiveness of agent security products.