Cyber Security for Beginners — 30 Lessons
Work through the full course at your own pace. Each lesson includes a video, downloadable notes, and a short practice quiz.
Welcome to Cyber Security
Meet your instructor and learn why cyber security matters for everyone.
What Is the Internet?
Understand how the internet connects computers around the world.
Passwords & Strong Locks
Create strong passwords and learn why they are your first line of defense.
Phishing: Don't Take the Bait
Spot fake emails, messages, and websites that try to trick you.
Safe Browsing Habits
Build daily habits that keep you safe while exploring the web.
Websites, Domain Names & Web Hosting
How websites are named, hosted, and delivered to your computer.
DNS: How the Internet Finds Websites
DNS turns names like google.com into the numbers computers use.
IP Addresses: Public, Private, IPv4 & IPv6
Every device online needs an address — here is how they work.
Network Devices: Routers, Switches, Modems & Firewalls
Meet the machines that move and protect your data.
Computer Network Types: LAN, WAN, MAN, PAN & VPN
Networks come in many sizes — from your room to the world.
The OSI Model: 7 Layers of Networking
The seven layers that make the internet work, made very easy.
Network Scanning & Enumeration
The first ethical-hacking step: discovering what is on a network.
Network Monitoring, Logging & Intrusion Detection
How cyber threats are spotted early.
SIEM: Finding Hidden Threats
How professionals detect threats hidden in millions of events.
Hash Functions & Digital Signatures
How the digital world proves trust and authenticity.
Digital Certificates, PKI, SSL, TLS & HTTPS
How your browser knows a website can be trusted.
Authentication, Passwords, OTP, Biometrics & MFA
How computers verify who you really are.
Access Control, User Privileges & Least Privilege
How computers decide what you are allowed to access.
Malware, Viruses, Worms, Trojans, Spyware & Ransomware
How malicious software attacks — and how to defend.
Finished the beginners course?
Continue with the 15-lesson Advanced Cyber Security course and earn a separate advanced certificate.
Go to Advanced CourseComplete All 30 Lessons to Unlock the Beginners Certificate
Finish every lesson, then take the 100-question exam. Score 70% or higher to earn your certificate.
Certificate Details