The Cisco IDS 4200 series appliance sensors are purpose-built, high-performance network security "appliances" that protect against unauthorized, malicious activity traversing the network, such as attacks by hackers. Cisco IDS sensors analyze traffic in real time, enabling users to quickly respond to security breaches.Cisco's world-renowned Cisco Countermeasures Research Team (C-CRT) uses a combination of highly innovative and sophisticated detection techniques, including stateful pattern recognition, protocol parsing, heuristic detection, and anomaly detection, that provide comprehensive protection from a variety of both known and unknown cyber threats. Furthermore, Cisco's patent-pending Signature Micro-Engine (SME) technology allows granular customization of sensor signatures, resulting in precisely tuned sensors that minimize the occurrence of "false positives." When unauthorized activity is detected, the sensor can send alarms to the management console(s) with details of the activity. Additionally, the Cisco IDS Active Response System delivers unparalleled protection by controlling other systems, such as routers, firewalls, and switches, to terminate unauthorized sessions. The installation and management of these turnkey appliances is easy using a wide array of management solutions, including a Web user interface, a command-line interface (CLI), or Cisco's highly scalable CiscoWorks VPN/Security Management solutions (VMS).At 200 Mbps, the Cisco IDS 4235 can be deployed to provide protection in switched environments, on multiple T3 subnets, and with the support of 10/100/1000 interfaces, it can also be deployed on partially utilized gigabit links.