Summary and Exam Tips for Cyber Security
Cyber Security is a subtopic of The Internet and its Uses, which falls under the subject Computer Science in the Cambridge IGCSE curriculum. Cyber security is crucial for protecting valuable data from both accidental and malicious threats. Malicious actions include unauthorized data access, deletion, or corruption, while accidental damage often results from human error. To mitigate these risks, implementing measures such as setting user permissions, password protection, and regular backups is essential. The internet poses additional threats like brute force attacks, DDOS attacks, hacking, and malware. Brute force attacks involve guessing passwords, while DDOS attacks flood networks with traffic to disrupt services. Hacking can lead to identity theft and data loss. Malware includes viruses, worms, and ransomware, which can be prevented by using anti-virus software and firewalls. Phishing and pharming scams trick users into revealing personal information. Secure connections can be ensured using SSL certificates, which authenticate and encrypt data. Firewalls and proxy servers provide additional layers of security by filtering traffic and hiding IP addresses.
Exam Tips
- Understand Key Concepts: Focus on understanding the differences between malicious actions and accidental damage, and how each can impact data security.
- Familiarize with Threats: Be able to identify and explain common cyber threats like brute force attacks, DDOS, and malware.
- Preventive Measures: Know the various preventive measures such as using strong passwords, regular backups, and installing firewalls.
- SSL and Secure Connections: Understand how SSL certificates work and how they ensure secure data transmission over the internet.
- Practical Application: Be prepared to discuss real-world applications of cyber security measures and how they protect against specific threats.
