Abstract: A security system for a computer network that has a plurality of devices connected thereto comprises a security subsystem, a master system and a secure link. The security subsystem is implemented on a first computer and is connected to at least some of the devices in the network. The security subsystem is configured to monitor activities of the at least some devices on the network and detect attacks on the at least some devices. The master system is implemented on a second computer which is different from the first computer. The master system monitors the integrity of the security subsystem and registers information pertaining to attacks detected by the security subsystem. The secure link is connected between the security subsystem and the master system. The master system monitors the integrity of the security subsystem and receives the information pertaining to the attacks through the secure link.

Abstract: A security system for a computer network that has a plurality of devices connected thereto comprises a security subsystem, a master system and a secure link. The security subsystem is implemented on a first computer and is connected to at least some of the devices in the network. The security subsystem is configured to monitor activities of the at least some devices on the network and detect attacks on the at least some devices. The master system is implemented on a second computer which is different from the first computer. The master system monitors the integrity of the security subsystem and registers information pertaining to attacks detected by the security subsystem. The secure link is connected between the security subsystem and the master system. The master system monitors the integrity of the security subsystem and receives the information pertaining to the attacks through the secure link.

Abstract: A security system for a computer network that has a plurality of devices connected thereto comprises a security subsystem, a master system and a secure link. The security subsystem is connected to at least some of the devices in the network. The security subsystem is configured to monitor activities of the at least some devices on the network and detect attacks on the at least some devices. The master system monitors the integrity of the security subsystem and registers information pertaining to attacks detected by the security subsystem. The secure link is connected between the security subsystem and the master system. The master system monitors the integrity of the security subsystem and receives the information pertaining to the attacks through the secure link.

Abstract: A security system for a computer network that has a plurality of devices connected thereto comprises a security subsystem, a master system and a secure link. The security subsystem is connected to at least some of the devices in the network. The security subsystem is configured to monitor activities of the at least some devices on the network and detect attacks on the at least some devices. The master system monitors the integrity of the security subsystem and registers information pertaining to attacks detected by the security subsystem. The secure link is connected between the security subsystem and the master system. The master system monitors the integrity of the security subsystem and receives the information pertaining to the attacks through the secure link.

Abstract: A system securing a computer network having various devices connected thereto. The system includes a security subsystem connected to the devices in the network, a master security system, and a first communication medium connected between the security subsystem and the master security system. The network devices generate event messages when under attack. The security subsystem generates multiple views, each view including a subset of the event messages generated by the devices. The security subsystem includes an event analyzer, which analyzes the event messages across multiple views to determine if any of the associated events exceeds a predetermined threshold. The master security system receives the associated events, which exceed the predetermined threshold, from the security subsystem through the first communication medium.

Abstract: A security system for a computer network that has a plurality of devices connected thereto comprises a security subsystem, a master system and a secure link. The security subsystem is connected to at least some of the devices in the network. The security subsystem is configured to monitor activities of the at least some devices on the network and detect attacks on the at least some devices. The master system monitors the integrity of the security subsystem and registers information pertaining to attacks detected by the security subsystem. The secure link is connected between the security subsystem and the master system. The master system monitors the integrity of the security subsystem and receives the information pertaining to the attacks through the secure link.

Abstract: A method and apparatus for verifying the integrity of devices on a target network. The apparatus has security subsystems and a master security system hierarchically connected to the security subsystems via a secure link. The target network includes various intrusion detection devices, which may be part of the security subsystem. Each intrusion detection device generates a plurality of event messages when an attack on the network is detected. The security subsystem collects these event messages, correlates, and analyzes them, and performs network scanning processes. If certain events warrant additional scrutiny, they are uploaded to the master security system for review.

Abstract: A security system for a computer network that has a plurality of devices connected thereto comprises a security subsystem, a master system and a secure link. The security subsystem is connected to at least some of the devices in the network. The security subsystem is configured to monitor activities of the at least some devices on the network and detect attacks on the at least some devices. The master system monitors the integrity of the security subsystem and registers information pertaining to attacks detected by the security subsystem. The secure link is connected between the security subsystem and the master system. The master system monitors the integrity of the security subsystem and receives the information pertaining to the attacks through the secure link.

Abstract: A method and apparatus for verifying the integrity of devices on a target network having two components: a subsystem connected to the target network, and a master system, isolated therefrom by a secure link. The topological and hierarchical relationship of the of the devices to each other improves stability of the apparatus. Random testing of target network devices by the subsystem and random testing of the subsystem by the master system provide verification and independent self-checking.

Abstract: A method and apparatus for verifying the integrity of devices on a target network. The apparatus has security subsystems and a master security system hierarchically connected to the security subsystems via a secure link. The target network includes various intrusion detection devices, which may be part of the security subsystem. Each intrusion detection device generates a plurality of event messages when an attack on the network is detected. The security subsystem collects these event messages, correlates, and analyzes them, and performs network scanning processes. If certain events warrant additional scrutiny, they are uploaded to the master security system for review.

Abstract: A method and apparatus for verifying the integrity of devices on a target network. The apparatus has security subsystems and a master security system hierarchically connected to the security subsystems via a secure link. The target network includes various intrusion detection devices, which may be part of the security subsystem. Each intrusion detection device generates a plurality of event messages when an attack on the network is detected. The security subsystem collects these event messages, correlates, and analyzes them, and performs network scanning processes. If certain events warrant additional scrutiny, they are uploaded to the master security system for review.

Abstract: A method and apparatus for verifying the integrity of devices on a target network. The apparatus has security subsystems and a master security system hierarchically connected to the security subsystems via a secure link. The target network includes various intrusion detection devices, which may be part of the security subsystem. Each intrusion detection device generates a plurality of event messages when an attack on the network is detected. The security subsystem collects these event messages, correlates, and analyzes them, and performs network scanning processes. If certain events warrant additional scrutiny, they are uploaded to the master security system for review.

Abstract: A method and apparatus for verifying the integrity of devices on a target network having two components: a subsystem connected to the target network, and a master system, isolated therefrom by a secure link. The topological and hierarchical relationship of the of the devices to each other improves stability of the apparatus. Random testing of target network devices by the subsystem and random testing of the subsystem by the master system provide verification and independent self-checking.