Security in Computing, 5e by Charles P. Pfleeger & Shari Lawrence Pfleeger & Jonathan Margulies

Author:Charles P. Pfleeger & Shari Lawrence Pfleeger & Jonathan Margulies [Pfleeger, Charles P.]
Language: eng
Format: azw3, mobi
Publisher: Prentice Hall
Published: 2015-01-22T16:00:00+00:00

6.8 Intrusion Detection and Prevention Systems

After the perimeter controls, firewall, and authentication and access controls block certain actions, some users are admitted to use a computing system. Most of these controls are preventive: They block known bad things from happening. Many studies (for example, see [DUR99]) have shown that most computer security incidents are caused by insiders or people impersonating them, people who would not be blocked by a firewall. And insiders require access with significant privileges to do their daily jobs. The vast majority of harm from insiders is not malicious; it is honest people making honest mistakes. Then, too, there are the potential malicious outsiders who have somehow passed the screens of firewalls and access controls. Prevention, although necessary, is not a complete computer security control; detection during an incident copes with harm that cannot be prevented in advance. Larry Halme and Ken Bauer [HAL95] survey the range of controls to deal with intrusions.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.