Overview of McAfee Agent McAfee® Agent is the client-side component that provides secure communication between McAfee® ePolicy Orchestrator® Cloud (McAfee® ePO™ Cloud) and managed products. The agent also serves as an updater for McAfee products. Systems can be managed by McAfee ePO Cloud only if they have an agent installed. While running silently in the background, the agent: Installs products and their upgrades on managed systems. Updates security content such as the AMCore Content Package associated with McAfee® Endpoint Security. Enforces policies and schedules tasks on managed systems. Gathers information and events from managed systems, and sends them to McAfee ePO Cloud. Key features of McAfee AgentMcAfee Agent architecture is single threaded and asynchronous based on services (messaging) architecture. In messaging-based architecture, the services communicate using a common language. This reduces the use of system resources, such as number of threads, number of handles, memory, and CPU. How McAfee Agent works Installing the agent on client systems is required for managing your security environment through McAfee ePO Cloud.