Trace a familiar service, such as online banking or messaging, through the devices, apps, accounts, networks, cloud systems, data, and people it depends on. You will identify what needs protection and who is harmed when one part fails.

Classify security problems as losses of confidentiality, integrity, or availability. You will practice naming whether an incident exposed information, changed something that should be trusted, or blocked people from using what they need.

Apply the previous explanations in a guided problem.

Reason through why accounts, permissions, MFA, logs, and audit trails matter. You will connect authentication, authorization, and accountability to the goal of knowing who did what and limiting what each identity can do.

Recognize why personal data, credentials, business records, source code, configurations, and payment details have different kinds of value. You will compare data at rest, in transit, and in use, and decide what could go wrong if each is exposed or altered.

Apply the previous explanations in a guided problem.

Check your understanding with a short quiz.

Connect technical incidents to real-world consequences: fraud, ransomware payments, business interruption, privacy harm, unsafe devices, and damaged reputation. You will distinguish problems that mainly affect money, safety, trust, or a mix of all three.

Reason about security when prevention is not enough. You will use backups, redundancy, recovery plans, incident response, RTO, and RPO to describe how organizations keep operating and recover trust after failures or attacks.

Apply the previous explanations in a guided problem.

Check your understanding with a short quiz.

Review this chapter with practice based on your mistakes.