Safe by design
Exercises run in dedicated environments. Techniques are taught for authorized practice, with clear responsible-use boundaries.
Hands-on security learning
Learn cybersecurity by investigating real artifacts.
Kinoco Hacker is a CTF learning platform for building practical security skills. Start with guided fundamentals, then progress through isolated challenges covering web applications, Linux, cryptography, digital forensics, networks, and programming.
Choose a security domain
Each path moves from focused fundamentals to advanced investigation.
Web Security
Learn HTTP, authentication, input validation, and common web vulnerabilities in isolated practice environments.
View challenges →Linux
Practice Linux commands, permissions, processes, logs, and privilege boundaries through focused security challenges.
View challenges →Cryptography
Work from classical ciphers to modern cryptographic concepts while learning the difference between encoding, hashing, and encryption.
View challenges →Digital Forensics
Investigate files, metadata, logs, memory artifacts, and network captures to reconstruct events from digital evidence.
View challenges →Network Security
Learn TCP/IP, DNS, packet analysis, and network attack evidence through safe, reproducible exercises.
View challenges →Programming
Write small programs to transform data, automate investigation, and solve security tasks that do not scale by hand.
View challenges →General Skills
Build the command-line, encoding, search, and tool skills needed before moving into specialist security topics.
View challenges →Evidence before guessing
Challenges emphasize reproducible commands, observable artifacts, and explanations that connect the result to the underlying concept.
A progressive path
Five difficulty levels make it possible to start with core tools and build toward multi-step analysis.