Cyber Explorer Skills · lesson 12 of 16 · 15 min
Cyber explorer review
You have covered a lot of ground in this course. Let us review the most important ideas from every unit so they stay sharp in your memory. Cybersecurity is not a one-time lesson — it is a set of habits you practice every day.
The more you review and apply what you know, the safer you will be online. This lesson brings together the key concepts from all the units you have completed.
Core concepts to remember: Strong passwords and MFA, privacy and digital footprints, recognizing scams and phishing, safe downloads and updates, kindness and digital citizenship, and knowing when to ask a trusted adult.
The big picture — what you have learned
Passwords and MFA Strong, unique passwords for every account. Multi-factor authentication adds a second layer of protection. Privacy Keep personal information private. Think before you share. Your digital footprint lasts a long time. Scams and phishing Recognize fake messages, fake prizes, and fake websites. Pause before you click. Safe downloads Only download from trusted sources. Keep software updated. Malware hides in unexpected places. Digital citizenship Be kind online. Use the THINK test. Stand up for others. Report harmful content. Ask for help Know your trusted adults. Ask for help when something feels wrong. You do not have to face it alone.
Key words to remember
- CIA triad
- MFA
- Phishing
- Digital footprint
- Cyber defender
Match each core concept to its key idea
Cyber explorer review — quiz
What are the three parts of the CIA triad in cybersecurity?
- Computers, Internet, Accounts
- Confidentiality, Integrity, Availability
- Clicks, Information, Alerts
- Codes, Identity, Access
Answer: Confidentiality, Integrity, Availability
The CIA triad stands for Confidentiality (keeping data private), Integrity (keeping data accurate), and Availability (keeping systems accessible).
Which of these is the strongest password?
- password
- 12345678
- River!Blue9Elephant
- myname2010
Answer: River!Blue9Elephant
River!Blue9Elephant is a strong passphrase — long, uses unrelated words, a number, and a special character.
What should you do if something online makes you feel scared or uncomfortable?
- Handle it yourself
- Ignore it and keep browsing
- Stop, think, and tell a trusted adult
- Share it with friends to get their opinion
Answer: Stop, think, and tell a trusted adult
Stop, Think, Tell — always involve a trusted adult when something feels wrong online.
What is phishing?
- A type of fishing game
- A fake message designed to trick you into revealing personal information
- A type of antivirus software
- A safe way to share files
Answer: A fake message designed to trick you into revealing personal information
Phishing uses fake messages to trick people into clicking dangerous links or sharing personal information.
Your digital footprint can last for years after you post something online.
- True
- False
Answer: True
Digital footprints are long-lasting — screenshots and shares mean content can survive even after deletion.
What does MFA stand for?
- My Favorite App
- Multi-Factor Authentication
- Maximum File Access
- Mobile First Application
Answer: Multi-Factor Authentication
MFA (Multi-Factor Authentication) adds a second verification step beyond your password.
What is the THINK test used for?
- Testing your internet speed
- Deciding whether a comment is worth posting
- Creating strong passwords
- Checking if a website is safe
Answer: Deciding whether a comment is worth posting
THINK (True, Helpful, Inspiring, Necessary, Kind) helps you decide if a comment should be posted.
Keeping software updated is one of the most effective ways to stay safe online.
- True
- False
Answer: True
Updates patch security vulnerabilities — keeping software current is one of the simplest and most effective protections.
What is a cyber defender?
- A professional hacker
- Someone who uses cybersecurity knowledge to protect themselves and others
- A type of antivirus software
- Someone who builds firewalls
Answer: Someone who uses cybersecurity knowledge to protect themselves and others
A cyber defender uses what they know to stay safe and help others stay safe online.
What is the most important habit for staying safe online?
- Never using the internet
- Practicing good cybersecurity habits every day
- Only using the internet for schoolwork
- Telling everyone your passwords
Answer: Practicing good cybersecurity habits every day
Cybersecurity is not a one-time lesson — it is a set of daily habits that keep you safe.
Try it: Cyber explorer review
Previous lesson: Digital kindness challenge
Back to Cyber Explorer Skills
Next lesson: Safe sharing mission prep