Talis Data Systems has launched Datagent, an NSA/NIAP-validated, hardware-based security system. When installed in a PC or workstation, Datagent controls user-access to peripherals, preventing data migration across multiple, secure networks and providing protection against insider attacks. Independent of a PC's operating system, the solution's SmartCard-based interface provides system administrators with a fully-configurable and auditable protection strategy to manage user access to components, such as hard drives, USB ports and network connections. The product is NSA/NIAP-validated at EAL level 4 and ensures complete physical separation of up to three networks within a single desktop computer.