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Computer Security
Defining "computer security" is not trivial. The difficulty lies in developing a definition that is broad enough to be valid regardless of the system being described, yet specific enough to describe what security really is. In a generic sense, security is "freedom from risk or danger." In the context of computer science, security is the prevention of, or protection against,
access to information by unauthorized recipients, and - intentional but unauthorized destruction or alteration of that information
This can be re-stated: "Security is the ability of a system to protect information and system resources with respect to confidentiality and integrity." Note that the scope of this second definition includes system resources, which include CPUs, disks, and programs, in addition to information.
Computer security is frequently associated with three core areas, which can be conveniently summarized by the acronym "CIA":
- Confidentiality -- Ensuring that information is not accessed by unauthorized persons
- Integrity -- Ensuring that information is not altered by unauthorized persons in a way that is not detectable by authorized users
- Authentication -- Ensuring that users are the persons they claim to be
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Quick important links:
| Antivirus |
| Antispam |
| Antimalware |
| Firewall |
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My computer doesn't start automaticallyI get a blue screen while working on the computerI need help in restoring my computer and reinstalling windows.My computer freezes, blue screens or locks up when using itHow do i run basic diagnostic step on my computerOffice 2010 activationI have trouble with CD/DVD drive
Featured services:
- Microsoft® Windows 7 Setup & Installation
- Wireless Setup & Wireless security configuration
- Hardware Setup & installation
- Computer Tune Up and Optimization
