Python from zero for people who want to work in security. Every exercise is a real analyst task: read a log, count failed logins, pull the indicators out of a JSON event, decode an obfuscated command. You write and run the code right in the browser — nothing to install. Free, no programming background assumed.
Free forever. No card, no trial, no expiry.
Preview the student experience
No login · Free interactive demo
1
Guided lab
Real VM with the 24 € Pro unlock
6h
Of content
Labs + practice + exams + simulations
5
Modules
Progressive difficulty
2–4h
Per lab session
Unlimited restarts
What's includedLab tools you will use
The course is free: every lesson, the in-browser exercises, the module quizzes and the flags. You need an account, but no card. Two things are paid: the HTK Python Lab — a full editor with larger datasets and graded challenges — and the instructor review of your final script. That unlock is 24 €, once.
No. The course starts from zero: it assumes you have never written a line of code. What it does assume is that you are interested in security, because every example comes from there.
No. The code runs inside your browser, isolated from your computer and from our servers. Any recent browser will do. If you want to install Python on your machine later, the course explains how, but you do not need it to finish.
Yes. Your code runs in an isolated area of the browser with no access to your files or your other tabs, and it cannot connect to other websites. The worst an exercise can do is get stuck, and the environment stops it after a few seconds.
5 modules · 6h of content
Each phase maps to a module in this course. Scroll to see how the curriculum builds, module by module.
Module 1
IntroductoryModule 2
IntroductoryModule 3
IntroductoryModule 4
IntroductoryModule 5
IntroductoryEvery lesson has short exercises you run in the browser and a flag that only comes out if your code is right. The Pro unlock adds the HTK Python Lab: a full editor with several files, larger datasets — thousands of log lines, EDR events in JSON — and six challenges with automatic tests, plus a final triage script that an instructor reviews.
Said plainly here so nothing surprises you halfway through the course.
One payment, no subscription. The unlock is per free course: this one covers this course only, so you pay for the course you are actually taking. And if you later buy any paid HTK course — Beginner (119 €), Intermediate (159 €) or a complete Learning Path (199 €) — all three unlocks come included, one for each free course: 72 € of value at no extra cost. You never pay twice for the same thing.
Complete answers about this course, labs, certificates, and refunds
The course is free: every lesson, the in-browser exercises, the module quizzes and the flags. You need an account, but no card. Two things are paid: the HTK Python Lab — a full editor with larger datasets and graded challenges — and the instructor review of your final script. That unlock is 24 €, once.
No. The course starts from zero: it assumes you have never written a line of code. What it does assume is that you are interested in security, because every example comes from there.
No. The code runs inside your browser, isolated from your computer and from our servers. Any recent browser will do. If you want to install Python on your machine later, the course explains how, but you do not need it to finish.
Yes. Your code runs in an isolated area of the browser with no access to your files or your other tabs, and it cannot connect to other websites. The worst an exercise can do is get stuck, and the environment stops it after a few seconds.
Only with the 24 € unlock. The certificate depends on an instructor reviewing and passing your final triage script, and that review is the paid part. Writing and submitting the script is free.
No. Any paid HTK course purchase includes the Pro unlock of every free course.
This course exists to help you choose with some basis instead of guessing. Once you know which side of the field appeals to you, each learning path takes you from beginner to intermediate with the labs to match.
Three hours, no prior knowledge, and a real phishing email to take apart. Create an account and begin.
