Security Training for Developers

  • Hack interactive applications to understand how you are vulnerable.
  • Learn how to protect yourself with real, up-to-date code samples.
  • Test your knowledge as you learn, by taking quizzes on each topic.

See it in action! Learn about...

Command Execution
Directory Traversal
See the full list of vulnerabilities we cover →

132,000 users and counting!

What our users are saying about Hacksplaining...

My company uses their own custom login code. 15 minutes into the SQL injection lesson I realized we needed to have a meeting about security practices!

I’ve always thought that learning how to hack was one of the best ways to learn how to defend yourself from attacks. You should send all your web developers, and even your IT staff, to check out Hacksplaining.

Extremely impressed. This website is very well done, and we will be using Hacksplaining as a training tool for newer developers.

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Hacksplaining is Sponsored by Netsparker
Netsparker, the creators of an industry-leading web application security solution, sponsors the Hacksplaining project to increase awareness of web vulnerabilities and help developers write more secure code.
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