Cybersecurity here covers defending systems and the people who use them: the common attacks and why they keep working, the practical defences, and the habits that matter more than any single tool. Network security sits beneath this page as a section of its own.
Everything listed is free to start and pitched at beginners or marked as suitable for all levels, which makes this a reasonable place to find out whether the field suits you before committing money to a certification track. The courses are taught on YouTube, in public, so you can judge the teaching before you spend an evening on it.
Every course is compared on the same terms as the rest of the catalogue: level, length, price, whether it ends in a certificate, and who stands behind it. Use the filters to narrow by level or length, and open any course to read the full description before starting.
11 courses
1 lesson, about 15 hours
Fifteen hours on network penetration testing from the ground up: setting up a lab, the tooling, and each stage of an engagement against a network you are allowed to test.
1 lesson, about 12 hours
Twelve hours of practical ethical hacking: reconnaissance, scanning, exploitation and post-exploitation, worked through against deliberately vulnerable targets.
1 lesson, about 5 hours
Five hours on the vocabulary and the fundamentals, aimed at somebody who needs the terminology of IT security before anything else makes sense.
1 lesson, about 8 hours
Eight hours covering cyber security end to end: the threat landscape, cryptography, network and application defence, and the certifications the field hires against.
8 lessons, about 2 hours
Eight classes taking Python from variables and loops to the libraries used in security work — Scapy, Nmap — and finishing with a Python assistant built from scratch. Taught in Hindi.
1 lesson, about 12 hours
Twelve hours of hands-on ethical hacking with lab work rather than slides, taught in Hindi. This is part one of the series.
1 lesson, about 47 hours
A forty-seven hour compilation covering the whole subject: fundamentals, ethical hacking, network and cloud security, and the certifications a career in it runs through.
1 lesson, about 9 hours
An eight-hour beginner course covering the vocabulary, the common attacks and the defensive tooling, worked through with practical examples.
1 lesson, about 7 hours
A seven-hour run through cyber security from first principles to advanced material: threats and attack types, cryptography, network defence and the tooling a practitioner uses.
1 lesson, 6 minutes
A short orientation: what cyber security covers, what a security analyst actually does, and the skills worth learning first. Taught in Hindi.
1 lesson, about 5 hours
A single five-hour session introducing ethical hacking for beginners: the tools, the terminology and the practice, taught in Hindi. This is part one of the series.
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