COMP400 – Computer and Network Security

Revision 3  ·  School of Computing and Information Systems
TrustOpen University Undergraduate 8 Units

Welcome to Computer and Network Security

This course provides a comprehensive introduction to the principles and practice of computer and network security. You will explore fundamental concepts including cryptography, authentication, access control, network security, systems security, and the management of security in organizations. The course follows a structured approach to help you understand both the technical and managerial aspects of securing modern information systems.

Textbook: Stallings, W., & Brown, L. (2024). Computer Security: Principles and Practice (5th ed.). Pearson Education.

Course Units 8 units

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Unit 1
Introduction to Computer and Network Security
Overview of computer and network security, malicious software, and denial‑of‑service attacks.
Security overview · Malware · DoS attacks
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Unit 2
Cryptographic Protocols, Tools, and Algorithms
Cryptographic tools, symmetric encryption and message confidentiality, and public‑key cryptography with message authentication.
Encryption · Confidentiality · Public‑key · Authentication
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Unit 3
Authentication and Access Control
User authentication, access control models, and Internet authentication applications.
Authentication · Access control · Identity management
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Unit 4
Security Systems and Models
Intrusions and intrusion detection, firewalls and intrusion prevention systems, and Internet security protocols and standards.
IDS/IPS · Firewalls · Security protocols
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Unit 5
Systems Security
Database and data centre security, buffer overflow, software security, operating system security, wireless network security, and cloud & IoT security.
DB security · Buffer overflow · OS security · Wireless · Cloud · IoT
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Unit 6
Management Issues in Computer and Network Security
IT security management and risk assessment, security controls, plans, and procedures, physical and infrastructure security, human factors, security auditing, and legal and ethical aspects.
Risk management · Controls · Physical security · Auditing · Legal/Ethical
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Unit 7
Legal, Ethical, and Compliance Issues
Privacy laws, intellectual property, cybercrime, professional ethics, and regulatory compliance.
Privacy · IP · Cybercrime · Ethics · Compliance
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Unit 8
Emerging Trends and Topics
Cloud security, IoT security, AI/ML security, Zero Trust architectures, and future challenges.
Cloud · IoT · AI/ML · Zero Trust · Future challenges
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Course Progress – Complete!

8 / 8 units
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