cyber revision

Notes

Each topic is split into short chapters you can mark as read. Work through them in order or jump to what your course needs.

Security Fundamentals
  1. 01The CIA triad and beyond4 min
  2. 02Threat actors and motivations3 min
  3. 03Security controls and defence in depth3 min
  4. 04Threat modelling4 min
  5. 05Secure design principles4 min
Cryptography
  1. 01Symmetric encryption4 min
  2. 02Asymmetric encryption and key exchange4 min
  3. 03Hashing, MACs and password storage4 min
  4. 04Digital signatures, certificates and TLS4 min
  5. 04Digital signatures and PKI3 min
  6. 05How cryptography fails4 min
Networks & Network Security
  1. 01Network models and the protocols that matter5 min
  2. 02Network attacks4 min
  3. 03Firewalls, IDS/IPS, VPNs and segmentation4 min
Web Security
  1. 01How the web works (and where it breaks)4 min
  2. 02The OWASP Top 10 (2025)4 min
  3. 03Injection and XSS in depth4 min
  4. 04Broken access control, auth and other web flaws4 min
OS & Identity Security
  1. 01Linux security model4 min
  2. 02Windows and Active Directory4 min
  3. 03Authentication and identity4 min
Threats & Malware
  1. 01Malware types4 min
  2. 02Social engineering and phishing4 min
  3. 03MITRE ATT&CK and threat intelligence4 min
Forensics & Incident Response
  1. 01The incident response lifecycle5 min
  2. 02Digital forensics4 min
  3. 03Security operations: SOC, SIEM and the blue team4 min
Governance, Risk & Law
  1. 01Risk management4 min
  2. 02Frameworks and standards4 min
  3. 03Law, ethics and privacy5 min
CTF & Practical Skills
  1. 01Penetration testing methodology5 min
  2. 02Reconnaissance and scanning4 min
  3. 03Tools4 min
  4. 04Privilege escalation4 min
OSINT
  1. 01OSINT foundations and methodology5 min
  2. 02Domain, DNS and infrastructure intelligence6 min
  3. 03People, identity and social media OSINT6 min
  4. 04Search engine dorking and web archives6 min
  5. 05Geolocation, imagery and physical intelligence8 min
  6. 06Breach data, dark web intelligence and OSINT tooling8 min