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Brainlag Learn / GCSE Computer Science

Cyber security

Malware and social engineering, brute force, denial of service, SQL injection and interception, and the defences against them, with Caesar ciphers and password maths.

Lessons

  1. Malware and social engineeringViruses, worms, trojans, ransomware and spyware, and attacks that trick people instead of machines. 20 min, free
  2. Attacks on systemsBrute force, denial of service, SQL injection and data interception, and the maths of guessing passwords. 20 min, free
  3. Protecting systemsFirewalls, anti-malware, access levels, strong passwords and authentication, biometrics, updates, backups, penetration testing, and the weak points attackers look for. 20 min, Plus
  4. Encryption and the Caesar cipherWhat encryption does, the Caesar cipher by hand, why it is easy to break, and how password length changes the work for an attacker. 20 min, Plus

Practise and test

AQA, Pearson Edexcel and OCR are registered trade marks of their owners. Brainlag Learn is independent: it is not affiliated with or endorsed by any exam board, and every question on it is original.