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CHAPTER 1: INTRODUCTION TO NETWORK SECURITY (MALAYSIAN CYBER LAW (Computer…
CHAPTER 1: INTRODUCTION TO NETWORK SECURITY
NETWORK SECURITY
Define:
Consists of the provisions and policies adopted by the network administrator to prevent and monitor unauthorized access, misuse, modification, or denial of the computer network and network-accessible resources
The authorization of access to data in a network, which is controlled by the network administrator
THE NEED FOR SECURITY
Network security is needed to:
Ensure that the authentic users can effectively access the network and its services
Applications that can protect the network from unauthorized access are in place
Prevent unauthorized access to the network that is of potential threat to the network and its resources
Potential risk to network security:
Terrorist
Criminal elements
Hostile nations/state
Hackers or corporate competitors
SECURITY MODEL
Restrictive Security Model
Closed Security Model
Open Security Model
THREAT ANALYSIS OF NETWORK SECURITY
Assets Identification
Network devices such as router, switches and firewalls should taken care
Network resources should be able to identify user's privacy
To identify the resources used in network for various applications
Vulnerability Assessment
The process of identifying, quantifying and prioritizing the vulnerabilities in the system
Ensure configurations are correctly set and the proper security patches are applied
Threat Identification
To identify a threat in the system
Unauthorized access to information through networks
IDENTIFY LEGAL ISSUES AND PIRACY CONCERNS
Any business is potential liable should a hacker or a virus take down the operation
The biggest reason to create and follow a security policy is compliance with the law
Depend on prevention technologies and practices are available and reasonably cost-effective to implement
MALAYSIAN CYBER LAW
Computer Crimes Act 1997
Telemedicine Act 1997
Communications and Multimedia Act 1998
Digital Signature Act 1997
Copyright (Amendment) Act 1997
Electronic Commerce Act 2006