Best Security+ Study Resources in 2026
Most people looking for Security+ study resources in 2026 have the opposite problem of what they think they have. They're not missing resources. They have too many. There's a Reddit thread somewhere with 40 recommended links, and the reader dutifully bookmarks all of them, and then doesn't pass the exam because they spent three weeks ping-ponging between Messer, a textbook, two practice apps, and a Discord server where people argue about which practice app is best.
So this isn't a "top 40 resources" roundup. It's closer to the short list I'd give a coworker who asked me what to actually use — with opinions about what to skip. SY0-701 is the current version; anything written before 2024 is going to be partially out of date, and you'll want to check dates on anything you pick up.
Textbooks (pick one, not both)
There are two reference textbooks that basically everyone ends up using. The Wiley CompTIA Security+ Study Guide by Chapple and Seidl is the thicker, more systematic one. It maps cleanly to the objectives, has decent end-of-chapter questions, and treats you like you're willing to sit with dense material. If you learn by reading and you're patient, this is the right book.
The other one is Darril Gibson's Get Certified Get Ahead. It reads more like someone explaining things to you than a textbook. Shorter, chattier, heavier on exam strategy. A lot of people prefer it — especially people who bounced off drier CompTIA prep books in the past.
Here's the thing though: pick one. I've watched people buy both, read both, and then have nothing left over for practice questions. The marginal gain from reading a second textbook is tiny compared to the gain from spending that time on practice questions and targeted review. If you're genuinely torn, flip through the cryptography chapter in each at a bookstore or on Kindle sample — whichever voice you can stand for 500 pages is the right one.
| If you like... | Go with |
|---|---|
| Systematic, reference-style depth | Wiley (Chapple & Seidl) |
| A human explaining things, plus exam tips | Gibson's Get Certified Get Ahead |
| Audiobook format for commutes | Gibson (it has an audiobook; Wiley doesn't really work in audio) |
Professor Messer's SY0-701 series
If I had to cut this entire post down to one recommendation, it would be Professor Messer's free SY0-701 video series on YouTube. Not "if you're on a budget" — full stop. It's the best-mapped-to-objectives video resource for this exam, it's free, and the production is tighter than most paid courses.
A few things worth knowing that people don't always figure out on their own:
Messer also runs monthly live study groups on YouTube, and the recordings are organized by topic. The live groups are where he hammers on the trickier conceptual stuff — governance, risk, the fiddly parts of cryptography — and they're genuinely different content from the main video series. Most people find the main series and never realize the study groups exist.
He also sells a "success bundle" with practice questions, a course notes PDF, and some supplemental material. It's reasonably priced and a lot of people pair it with free YouTube videos. I wouldn't call it mandatory. The free content alone can take you most of the way.
One pattern I've seen: people watch Messer, nod along, feel like they're learning, and then bomb practice questions on the same material a week later. Videos feel like progress without being progress. You need to be drilling questions while you're working through the video series, not as a separate phase afterward. If you try to watch all the videos first and then pivot to practice questions, you'll forget half of what you watched.
If you want a paid alternative, Jason Dion's Udemy course is the one people actually finish. It's more structured than Messer but less free, and it goes on sale for ten or fifteen bucks regularly — nobody should be paying full price for Udemy. CompTIA's own CertMaster Learn exists, it's fine, it's overpriced unless your employer is paying for it.
Practice questions
This is where practice question quality matters more than quantity, and it's where a lot of free and cheap resources fall short. A bank with 2,000 questions and three-line explanations is worse than a bank with 500 questions and detailed breakdowns of why each distractor is wrong.
LearnZapp's Security+ bank has 1,543 questions sourced from Wiley, with per-domain tracking, spaced repetition on your weak areas, and explanations that tell you why the wrong answers are wrong (which is where most of the learning actually happens). The diagnostic is free and runs in the browser with no signup. There are 320 short study articles and 364 flashcards built in, so you're not bouncing between apps.
Pocket Prep is decent for quick phone drilling — clean interface, no frills. Good for the bus. Their free tier is limited but usable as a supplement.
Kaplan and ExamCompass both have free practice questions floating around. The questions are okay. The explanations are usually one or two sentences, which is fine for a warmup but not enough to actually learn from when you miss something.
A note on a thing people do wrong: they drill questions, see their scores going up, and mistake that for readiness. If you're getting the same types of questions right because you've seen similar ones in the bank before, your score is inflated. The real test is whether you can explain why the correct answer is correct on a question you've never seen. That's the check.
Flashcards (for terminology, not concepts)
Security+ has a lot of acronyms. SAML, SCAP, SIEM, SOAR, TLS, TPM, OCSP — the list is genuinely long, and when you see six of them on a question, you don't have time to stop and think. Flashcards are great for this kind of memorization.
They are not great for concepts. Nobody has ever passed this exam by flashcarding their way through "what is risk appetite." If you're using flashcards as your primary study method, you're doing the equivalent of learning a language entirely through vocabulary lists.
The LearnZapp flashcards are built into the app alongside the question bank, which is convenient. Anki decks (free, open source) work well if you like building your own stack — the community decks on AnkiWeb are maintained for SY0-701. Quizlet has plenty of user decks but quality is all over the place; vet anything before you trust it.
What to skip
This is the section most resource roundups won't write. A few things I'd actively steer you away from:
Brain dumps. The sites that claim to have "real" exam questions. Using them violates CompTIA's NDA, and more practically — they're wrong often enough that you'll memorize bad answers and walk into the test confidently wrong. Don't. Also, if you get caught you can lose your cert and be banned from future exams.
SY0-601 materials. Older editions of textbooks, older Messer playlists, old practice banks. They share maybe 70-75% of content with SY0-701, and the stuff that changed is exactly the stuff they'll test you on because it's new. Check the version on any resource before you commit time to it.
Hands-on labs. TryHackMe, Hack The Box, home labs — these are great for your career and will make you a better security professional. They won't meaningfully move your Security+ score. The exam is knowledge-based, not practical. If you have time and energy, do labs because you want to. Don't do them because you think they'll help you pass.
CertMaster Practice at full price. It's fine. It's not $200-better-than-the-alternatives fine.
A combo that actually works
If I were starting from zero today, here's what I'd actually do:
Week one, take a diagnostic to find out where you're weakest before you open a book. Most people assume they're weak in cryptography because it's intimidating, and then turn out to be weakest in Domain 5 (governance) because they've never had to think about it. Knowing your real gaps changes how you allocate study time.
Then: Messer's video series as your backbone, Gibson or Wiley as your reference text (whichever voice you can tolerate), LearnZapp or Pocket Prep for daily practice questions, flashcards for terminology in the last two weeks before the exam. Skip the rest.
The week-by-week Security+ study plan post has a more detailed schedule if you want one. And how long to study for Security+ covers the timeline question depending on your background — an IT person with three years of experience is on a different clock than a career-changer.
One more pattern, because it's the one I keep seeing: people who use three or four resources in parallel almost always underperform people who use two resources deeply. The second resource gives you redundancy and cross-checking. The fourth one just eats time. If you find yourself adding a new resource because you feel behind, it's usually a sign that you're avoiding practice questions, not that you need more material.
Take a free Security+ diagnostic before you commit to a plan. 90 questions, no signup, gives you a per-domain breakdown so you're not guessing at where you're weak. Most people are wrong about where they need the work — the diagnostic fixes that in about 30 minutes, and then the rest of your study time actually goes to the right places.