What Is Cybersecurity?
Move through this lesson at your own pace and come back whenever you need a refresher.
A calm, beginner-friendly course that explains online security using everyday examples.

Learn the basics of protecting yourself online, blocking incoming threats, and acting quickly if a security breach happens.
Move through this lesson at your own pace and come back whenever you need a refresher.
Move through this lesson at your own pace and come back whenever you need a refresher.
Move through this lesson at your own pace and come back whenever you need a refresher.
Move through this lesson at your own pace and come back whenever you need a refresher.
Move through this lesson at your own pace and come back whenever you need a refresher.
Move through this lesson at your own pace and come back whenever you need a refresher.
What Is Cybersecurity?
Protect Personal Information
Block Incoming Threats
React Quickly to a Security Breach
Knowledge Check
Summary
Online Security Fundamentals goes deeper than the basics, teaching the specific tools and habits that make scam attempts much less likely to succeed against you:
This course is the natural follow-up to Online Safety Basics. If you've completed Basics — or if you already feel comfortable spotting scams but want to lock down your accounts — this is where you go next. The course assumes you're willing to make a few changes to how you use your accounts and to install a password manager.
If you have more than 10 online accounts (most people have 50+), then yes. The alternative is reusing passwords, which is the single biggest cause of account compromise. We walk through both built-in options (the one on your phone) and dedicated apps. See also: our guide to password management.
Yes. It cuts your risk of account compromise by more than 99%. The minor inconvenience of entering a code occasionally is worth it. We show you how to set it up step-by-step on the accounts that matter most (email, bank, government accounts).
A credit freeze locks your credit reports so no one can open new credit cards or loans in your name. It's free and we recommend it for anyone who isn't actively applying for credit. We walk through setting it up with all three credit bureaus.