All iPolicy Networks Intrusion Prevention Firewalls support multiple security services delivered in parallel at very high performance. This is made possible by iPolicy Networks? Single Pass Architecture?, a unique approach to network security that enables enterprises to realize a comprehensive security model that delivers integrated network security at superior performance even under heavy traffic flows. Multiple defense mechanisms, including IPS/IDS, Layer 7 stateful firewall and URL filtering, are intrinsically built into the solution. They successfully block worms/botnets, server exploits, spyware and Trojans, mitigate DoS/DDoS attacks and prevent blended threats from entering the network in addition to providing access control.