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WalesComputer Science

Unit 1: Security and data management

2 dot points across 2 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

What are the main cyber security threats to computer systems and networks?

Common cyber security threats, including malware, phishing, social engineering, brute-force attacks, denial-of-service attacks, SQL injection and data interception.
A focused answer to the WJEC GCSE Computer Science Unit 1 content on cyber security threats, covering malware and its types, phishing and social engineering, brute-force attacks, denial-of-service attacks, SQL injection and data interception, and how each threat works to compromise a system.
9 min answer →

How can computer systems and networks be protected from cyber security threats?

Methods of protecting systems and networks, including firewalls, encryption, authentication, anti-malware, penetration testing, network policies and managing cookies.
A focused answer to the WJEC GCSE Computer Science Unit 1 content on protecting systems and networks, covering firewalls, encryption, authentication including strong passwords and two-factor authentication, anti-malware software, penetration testing, network and acceptable-use policies, and the role of cookies.
9 min answer →