Learning objective
Explain cybersecurity and digital safety, reproduce the worked example and justify a decision in the case study.
Before you begin
Computers, hardware, and software
Understand
Security protects confidentiality, integrity, and availability through habits, controls, and response.
Worked example
A unique password and multi-factor authentication reduce the risk from stolen reused passwords.
Analysis and common mistakes
Confidentiality limits access, integrity protects against unauthorised changes, and availability keeps services accessible. Authentication establishes identity; authorisation defines permissions.
Case study — reasoning
A signed-in learner must not edit another learner’s grades. Hiding a button is insufficient: the server must check permission for each protected action.
Knowledge check
Summary
Security protects confidentiality, integrity, and availability through habits, controls, and response.
Sources for further study and verification
AI-assisted draft · Educator review not completed · Unofficial supplementary resource