Keep defending

You now understand the core of defensive security: the goals (confidentiality, integrity, availability), the common threats, the everyday defences, and how to read logs and respond.

Good security is mostly good habits, repeated:

• Strong, unique passwords and 2FA
• Keep everything updated
• Pause before you click
• Least privilege everywhere
• Keep backups

To go further:

• Practise spotting phishing in your own inbox
• Learn the command line, an analyst's main tool
• Explore the RiseAfrica challenges and the Data Science track, since reading logs is a data skill too

Practice

Write down one security habit from this course you will start this week, and teach it to one other person. Defence spreads best person to person.