Security & Privacy — Practical Notes (Level 3)
This page summarises practical security and privacy concerns that appear across core topics (AI, IoT, blockchain, cloud).
Security fundamentals (brief)
- Confidentiality: keeping data secret
- Integrity: preventing unauthorised modification
- Availability: ensuring services are reachable
Privacy basics
- Minimise data collection
- Use aggregation and anonymisation where possible
- Be cautious with long-term storage of personal data
Cross-topic examples
- AI: protect training data and model access
- IoT: secure device provisioning and firmware updates
- Blockchain: private vs public data trade-offs
Exercise
- For one of the technologies in this section, list three concrete steps a developer should take to improve security and privacy.