Learn Cyber Security & Hacking

Think like a hacker, defend like a pro. Hands-on cyber security lessons, CTF-style challenges and an AI mentor that explains every concept. Start free today.

Learn cyber security and ethical hacking from zero — no IT background required. Hands-on lessons on network security, web attacks, cryptography and defense, with quizzes, CTF-style challenges and an AI mentor that explains every concept. Built for beginners aiming at real security careers: SOC analyst, penetration tester, security engineer.

WHY LEARN CYBER SECURITY? • Security is one of tech's fastest-growing, best-paid fields — and it's chronically short of people • You don't need a degree to start: fundamentals + hands-on practice + certifications is a proven path • Understanding how attacks work makes you valuable in ANY tech role • Every lesson is practical — how attacks actually happen and how defenders actually stop them

WHAT YOU'LL LEARN • How attackers think — phishing, social engineering and malware • Network security — protocols, firewalls, scanning and monitoring • Web security — how injection, XSS and common vulnerabilities work, and how to prevent them • Cryptography — encryption, hashing and how secrets stay secret • Defense — hardening, incident response and security operations • Linux and command-line foundations for security work • Career paths and the concepts behind entry certifications

EVERYTHING YOU NEED TO GET STARTED • AI Mentor — confused by a protocol or an attack chain? Ask anything and get a clear answer in seconds • 100+ bite-sized lessons (5–10 minutes each) — theory you can actually finish • Quizzes and CTF-style challenges after every topic to lock in what you learn • Weekly Challenge — compete with learners around the world • Certificate of completion — pass the final exam and prove your skills • Streaks, progress tracking and smart reminders to keep you consistent • Learn on the go — lessons load fast and keep working on flaky connections • App available in 22 languages

WHO IT'S FOR • Complete beginners curious about hacking and defense • IT professionals moving toward security roles • Students preparing for security fundamentals and certification concepts • Developers who want to write code attackers can't break

WHITE-HAT ONLY Everything in this app is taught for defense, education and legal, ethical use. Learning how attacks work is how defenders are made.

Part of CoddyKit — a family of 40+ coding apps trusted by 100,000+ learners worldwide.

Free to start: your first course is free, with a daily AI Mentor allowance. Pro unlocks every course, removes ads and gives you unlimited AI Mentor.

Download now — think like a hacker, defend like a pro.

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