Intrusion Detection

ALSO CALLED: Host Intrusion Detection, Network Intrusion Detection, Host IDS, Network IDS, Network Intrusion Management, ID
DEFINITION: Intrusion detection (ID) is a type of security management system for computers and networks. An ID system gathers and analyzes information from various areas within a computer or a network to identify possible security breaches, which include both intrusions (attacks from outside the organization) and misuse (attacks from within the organization). ID uses vulnerability assessment (sometimes refered  … 
Definition continues below.

INTRUSION DETECTION DEFINITION (continued): …  to as scanning), which is a technology developed to assess the security of a computer system or network.Intrusion detection functions include: Monitoring and analyzing both user and system activities Analyzing system configurations and vulnerabilities Assessing system and file integrity Ability to recognize patterns typical of attacks Analysis of abnormal activity patterns Tracking user policy violationsID systems are being developed in response to the increasing number of attacks on major sites and networks, including those of the Pentagon, the White House, NATO, and the U.S. Defense Department. … 
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