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Search hundreds of walkthroughs and challenges by security category or difficulty. Whether you're a beginner or a seasoned pro, there's something for everyone!

1.1K+

Hands-on

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400+

Cyber Security

Challenges

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Splunk Basics - Did you SIEM?

Learn how to ingest and parse custom log data using Splunk.

medium

Free Walkthrough

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Phishing - Merry Clickmas

Learn how to use the Social-Engineer Toolkit to send phishing emails.

easy

Free Walkthrough

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The Great Disappearing Act

Can you help Hopper escape his wrongful imprisonment in HopSec asylum?

hard

Free Challenge

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Linux CLI - Shells Bells

Explore the Linux command-line interface and use it to unveil Christmas mysteries.

easy

Free Walkthrough

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HealthGPT

A safety-compliant AI assistant that has strict rules against revealing sensitive internal data.

easy

Premium Challenge

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BankGPT

A customer service assistant used by a banking system.

easy

Premium Challenge

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Juicy

A friendly golden retriever who answers your questions.

medium

Premium Challenge

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Padelify

Use red-teaming techniques to bypass the WAF and obtain admin access to the web application.

medium

Premium Challenge

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The Last Trial

Investigate the sixth, macOS part of the Honeynet Collapse!

hard

Premium Challenge

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The Case: Seven Minutes on the Seine

You are the analyst on call after a hi-vis crew struck the Galerie d'Apollon and fled toward the river. Investigate using only open sources.

easy

Free Challenge

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WAF: Exploitation Techniques

Learn to bypass Web Application Firewalls using practical evasion techniques.

medium

Premium Walkthrough

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Advent of Cyber Prep Track

Get ready for the Advent of Cyber 2025 with the "Advent of Cyber Prep Track", a series of warm-up tasks aimed to get beginners ready for this year's event.

easy

Free Walkthrough

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