February 2009
Intermediate to advanced
453 pages
17h 40m
English
Content preview from Computer Security: Protecting Digital Resources
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246 Chapter 9 Business Continuity and Disaster Recovery Planning
PROTECTION AGAINST INTRUDERS
Intruders can be described as unauthorized visitors who are not members of the normal user
community. These people can cause three problems, namely:
Theft.1.
Destruction of equipment, software, or data.2.
Viewing of sensitive data and information.3.
Intruders can use various methods to gain access to a computer or network facility. Access
can be physical or electronic, and there are methods to counter both. Intruders can be pre-
vented from accessing a LAN by ensuring that users protect passwords, log off when not at
the workstation, and take security seriously. There are operating system parameters that can
be set to limit time- of- day acce
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