Intrusion Prevention Defined
Definitions of Intrusion Prevention by users and experts.
Intrusion prevention requires adequate maintenance of overall system security, such as applying patches and setting security controls. It also involves responding to intrusions discovered via an IDS by erecting barriers to prevent future occurrences of the same attack.
CISSP Certified Information Systems Security Professional Study Guide
James Michael Stewart, Ed Tittel, Mike Chapple
Intrusion Detection and Intrusion Prevention defined:
- Intrusion detection is a technique of detecting unauthorized access to a computer system or a computer network.
- An intrusion into a system is an attempt by an outsider to the system to illegally gain access to the system. Intrusion prevention, on the other hand, is the art of preventing an unauthorized access of a system's resources.
- The two processes are related in a sense that while intrusion detection passively detects system intrusions, intrusion prevention actively filters network traffic to prevent intrusion attempts.
Guide to Computer Network Security
Joseph Kizza, The University of Tennessee at Chattanooga