Network Security : Measures Protect Data During Their Transmission Over A Collection Of Interconnected Networks Essay

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INTRODUCTION : The world is becoming more interconnected with the advent of the Internet and new networking technology. There is a large amount of personal, commercial, military, and government information on networking infrastructures worldwide. Network security is becoming of great importance because of intellectual property that can be easily acquired through the internet. When considering network security, it must be emphasized that the whole network is secure. Network security does not only concern the security in the computers at each end of the communication chain. When transmitting data the communication channel should not be vulnerable to attack. Definitions – Computer Security : generic name for the collection of tools designed to protect data and to thwart hackers – Network Security : measures to protect data during their transmission – Internet Security : measures to protect data during their transmission over a collection of interconnected networks Consider 3 aspects of information security: – Security Attacks – Security Services – Security Mechanisms Security Attacks – Any action that compromises the security of information owned by an organization – Often threat & attack used to mean same thing types of Attacks – Passive Attacks : attempt to learn or make use of information from the system but does not affect system resources – Active Attacks : attempt to alter system resource or affect their operation Security Threats Threats can come from a range of
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