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Free video course
CompTIA Security+ Domain 1 on Video, Free
The whole first domain of CompTIA Security+ (SY0-701), taught on video and free to watch. No account, no payment. Each lesson names the exact trap CompTIA uses to test the objective, so you recognize it on exam day.
- Lessons
- 4
- Runtime
- 59 min
- Cost
- Free
Domain 1: General Security Concepts
SY0-701 · 1.1
Security Controls
The two axes every control has: category (who enforces it) and type (what it does).
Watch on YouTube (opens in a new tab)SY0-701 · 1.2
Fundamental Security Concepts
CIA triad, AAA, Zero Trust, physical security, and deception tech.
Watch on YouTube (opens in a new tab)SY0-701 · 1.3
Change Management
Approvals, impact analysis, backout plans, and the technical implications.
Watch on YouTube (opens in a new tab)SY0-701 · 1.4
Cryptographic Solutions
PKI, encryption, hashing, salting, digital signatures, key exchange, and tools.
Watch on YouTube (opens in a new tab)Prefer to read? Every objective also has a written lesson, practice questions, and a hands-on lab.
Start Domain 1 freeDomains 2 to 5: the members video library
Domain 1 is free for everyone. A SecPlus Mastery plan unlocks all 27 video lessons across Domains 2 to 5, plus the written lessons, labs, and over 1,000 practice questions. Open a domain to see what is inside.
2Domain 2: Threats, Vulnerabilities, and Mitigations
5 videos · 1h 23m
3Domain 3: Security Architecture
6 videos · 1h 51m
4Domain 4: Security Operations
9 videos · 2h 39m
17 minSY0-701 · 4.1
Secure Baselines and Hardening
18 minSY0-701 · 4.2
Asset Management
19 minSY0-701 · 4.3
Vulnerability Management
17 minSY0-701 · 4.4
Alerting and Monitoring
20 minSY0-701 · 4.5
Enterprise Security Capabilities
20 minSY0-701 · 4.6
Identity and Access Management
15 minSY0-701 · 4.7
Automation and Orchestration
17 minSY0-701 · 4.8
Incident Response
16 minSY0-701 · 4.9
Investigation Data Sources
5Domain 5: Security Program Management
7 videos · 2h 1m
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More videos
Extra videos outside the main course: study tips, tool walkthroughs, and exam-day advice, posted as they are made. Free for everyone, no account needed.
Explainers
Do You Actually Need a VPN? The Honest Answer (2026)
About 95 percent of the web is already encrypted, so the coffee shop hacker a VPN ad warns you about mostly cannot see what you type. What a VPN actually does, when it genuinely helps, and the watcher you would be paying to trust.
Watch on YouTube (opens in a new tab)How hackers
How One Phone Call Cost a Casino $100 Million
A stranger called the help desk, said the right words, and walked out with the keys to a company worth billions. No malware, no firewall broken. The six levers of influence behind the 2023 casino breaches, and how you stop a con that targets the person, not the technology.
Watch on YouTube (opens in a new tab)Explainers
Ransomware Gangs Have HR and Customer Support
A ransomware gang with a human resources team, an employee of the month, and payday on the 15th, straight from a real leaked chat log. How ransomware as a service became a billion-dollar industry, and the one thing finally breaking it: customers who stop paying.
Watch on YouTube (opens in a new tab)How hackers
He Approved One Login at 3AM. Hackers Took Everything.
One tap on Approve at 3 a.m. was all it took to breach Uber, and your MFA probably has the same weakness. How push bombing wears people down, why not every kind of MFA is equal, and the one login a phishing site cannot touch.
Watch on YouTube (opens in a new tab)Explainers
What Is the Dark Web, Really? (It's Not What the Movies Told You)
The real dark web is quieter and more fragile than the movies show. Follow one identity-for-sale listing from add to cart to the FBI seizure banner, and see why a place built for anonymity keeps losing to law enforcement. It maps straight to Security+ objective 2.1.
Watch on YouTube (opens in a new tab)Scams
The Email That Looks Like It's From Your Boss (But Isn't)
An email from your CEO says wire 250,000 dollars today and keep it quiet. He never sent it. How a stranger puts your boss's name at the top of your inbox, why the checks meant to catch it often fail, and the boring habit that does.
Watch on YouTube (opens in a new tab)Scams
I Followed One Stolen Record Into the Dark Web
A stranger calls already knowing your name, your street, and the last four of your card, and you never handed him any of it. We follow one real breached record from the company that lost it to the scam call it becomes, and the free move that breaks the chain.
Watch on YouTube (opens in a new tab)Explainers
A Fish Tank Robbed a Casino, and Every Big Hack Made One Mistake
A fish tank robbed a casino. Equifax lost 147 million people. A whole country ran out of gas over one password. Six of the biggest hacks ever, ranked by how small the way in was, with the same boring mistake sitting under every one.
Watch on YouTube (opens in a new tab)How hackers
They Logged In. No Password. No Prompt.
Her password was strong and her 2-step was on, and someone on another continent was still reading her email. How a stolen session cookie lets an attacker skip the password and the code entirely, shown live, plus the two free settings that shut it down.
Watch on YouTube (opens in a new tab)How hackers
You Hired a Remote Developer. It Was North Korea.
A remote developer passed four video interviews, a background check, and reference checks, then loaded malware onto the company laptop 25 minutes after it arrived. The North Korean fake IT worker scheme, the real FBI photo of a laptop farm, and the hiring checks that catch it.
Watch on YouTube (opens in a new tab)How hackers
How a Stranger Stole the SEC's Phone Number (And Moved Bitcoin)
The phone never left the nightstand, but by sunrise the bank was logging in from another city. A SIM swap steals your phone number itself, and in 2024 one stranger used it to hijack the U.S. SEC and move the price of Bitcoin. Why text message codes are the weak link, and the two minute fix.
Watch on YouTube (opens in a new tab)How hackers
Your Baby Monitor Is Attacking Strangers (And You Can't Tell)
Your baby monitor could be helping knock a website offline while the family sleeps, with no break in and no ransom note. How attackers sweep the internet for the factory passwords nobody changed, herd cheap cameras into a botnet, and the two minute fix that pulls yours back out.
Watch on YouTube (opens in a new tab)How hackers
I Downloaded a Free App. A Stranger Logged Into My Bank.
A cracked app or game cheat can hide an infostealer that copies your saved passwords, autofill cards, and login sessions in seconds. No password guess, no 2FA prompt, and the one habit that shuts it down.
Watch on YouTube (opens in a new tab)Scams
The 'Wrong Number' Text That Drains Your Bank Account
One reply to a wrong number text turns into weeks of friendly chat and a fake investment app showing money that was never there. This is pig butchering, and the three tells that stop it before you wire a cent.
Watch on YouTube (opens in a new tab)Scams
They Faked an Entire Video Call to Steal $25 Million
An employee joined a routine video call with his boss and coworkers, approved one transfer, and the company lost about 25 million dollars. Every other face was a deepfake, and the simple verification habit that would have caught it.
Watch on YouTube (opens in a new tab)Scams
AI Cloned His Voice in 3 Seconds. Then It Called His Family.
A few seconds of audio is enough to clone a voice you trust, then call your family at 2 a.m. begging for money. How voice-cloning scams really work, and the one family safe word that stops them.
Watch on YouTube (opens in a new tab)How hackers
The Fake CAPTCHA That Makes You Hack Yourself
A fake 'I am not a robot' check quietly drops a command onto your clipboard, then walks you into pasting it and pressing Enter yourself. This is ClickFix, why your antivirus stays quiet, and the rule that stops it.
Watch on YouTube (opens in a new tab)Scams
The QR Code Scam Hiding in Plain Sight
A sticker slapped over a real QR code can take your card details in under a minute, with no email and no link to click. How quishing works, why your phone alone will not save you, and the two-second check that does.
Watch on YouTube (opens in a new tab)Scams
How Scammers Steal Your Identity (They Don't Hack You)
Identity theft rarely starts with a hack. It is your own data, leaked in breaches and sold cheap, and the free credit freeze that shuts the whole scheme down.
Watch on YouTube (opens in a new tab)How hackers
How a $40 Gadget Can Hack Almost Anything
A Flipper Zero, a rubber ducky, a booby-trapped USB cable. The cheap gadgets that walk through the doors you left unlocked, and the habits that close them.
Watch on YouTube (opens in a new tab)How hackers
How Hackers Use Public Wi-Fi (The Truth Nobody Tells You)
HTTPS quietly killed password sniffing. The real danger is the evil twin that becomes the network and feeds you fake pages, and what actually protects you.
Watch on YouTube (opens in a new tab)How hackers
How Hackers Crack Passwords (And How Long Yours Would Last)
How attackers turn a stolen hash back into your password, and why length beats complexity for surviving a crack.
Watch on YouTube (opens in a new tab)How hackers
How Hackers Break Into a Company in 34 Days (And the One Move That Stops Them)
A real breach traced from the first phishing email to ransomware, and the single habit that breaks the chain.
Watch on YouTube (opens in a new tab)Video lessons FAQ
Are the Security+ video lessons free?
Yes. All four Domain 1 video lessons are free to watch, here on the site or on YouTube, with no account or payment required. They cover every objective in Domain 1 of the SY0-701 exam.What do the Domain 1 videos cover?
Four lessons: 1.1 Security Controls (categories and types), 1.2 Fundamental Security Concepts (the CIA triad, AAA, Zero Trust, physical security, and deception tech), 1.3 Change Management, and 1.4 Cryptographic Solutions (PKI, encryption, hashing, digital signatures, and key exchange). Each ends with the exact trap CompTIA uses to test it.Are there video lessons for Domains 2 to 5?
Yes. Every objective in Domains 2 through 5 has its own video lesson, included with any SecPlus Mastery plan, alongside the written lessons, labs, and practice questions. Domain 1 stays free for everyone.Do I have to pay to watch Domain 1?
No. Domain 1 is free on video and in writing. A paid plan unlocks Domains 2 to 5, over 1,000 practice questions, timed mock exams, and spaced review across the whole exam, plus a video lesson for every objective.
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Domain 1 is free, on video and in writing. A SecPlus Mastery plan unlocks Domains 2 to 5, over 1,000 practice questions, timed mock exams, and spaced review across the whole exam, and the new video lessons land for members first.
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