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1,600 results

Trusted By Default

Trusted By Default

Investigate suspected abuse of a trusted service account at Aurora Retail Group.

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Agent Evaluation

Agent Evaluation

Learn how to evaluate and improve the reliability of AI security agents.

easy

Frankesqwen

Frankesqwen

Can you find the flag nested in Frankesqwen?

hard

Agent Building

Agent Building

Build a Security Investigation Agent with tools, context, memory, and evidence-based decisions.

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The Vantara Leak

The Vantara Leak

THM Security Services has been engaged for a Digital Forensics activity for Vantara Financial Group.

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SSH Attacks

SSH Attacks

Learn how attackers abuse SSH agent forwarding, certificate trust, and shell restrictions.

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Agent Foundations

Agent Foundations

Learn the foundations of building Python-based AI agents.

easy

Grand Larceny Auto II

Grand Larceny Auto II

The sequel that shipped, with a vault the developers made that you can't just decompile your way into.

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Fileless Attacks

Fileless Attacks

Execute and understand fileless attack techniques used to evade AV in Windows environments.

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Building Wazuh Rules

Building Wazuh Rules

Learn how to create rules in Wazuh for your environment.

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Exploring Wazuh

Exploring Wazuh

Explore Wazuh: an all-in-one and free security solution.

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Agent Design

Agent Design

Design a safe AI agent by defining its scope, tools, oversight, stop conditions, and output.

easy

XSS2Shell: CVE-2026-64638

XSS2Shell: CVE-2026-64638

Chain a pre-auth XSS, DOM clobbering, and SOME to take control of a WordPress website and gain RCE.

medium

Bypassing Cloud Security

Bypassing Cloud Security

Exploit AWS PassRole, over-permissive trust policies, and policy versioning to escalate privileges.

medium

Management Wants a Word

Management Wants a Word

It was always her. It was never a bug; it was the business model.

hard

The Guestbook

The Guestbook

VERA reads every guestbook entry as an instruction. You write something she really shouldn't act on.

medium

DetectMare

DetectMare

THM Security Services has been engaged for a Detection Engineering activity for Meridian Defense Research Institute.

hard

After Hours

After Hours

Bar closed. Guests asleep. Something on the network just clocked in for a shift off the rotation.

medium

Overflow The Jackpot CTF

Overflow The Jackpot CTF

THM Defcon CTF Event

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Infinity Pool

Infinity Pool

No visible edge. You trace the network to the horizon and find three systems nobody told you about on the other side.

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The Hollow Shell

The Hollow Shell

You find it on the beach: pretty, ordinary, the kind of thing nobody thinks to check. Slip something inside and hold it to your ear.

medium

The Agent That Went Rogue

The Agent That Went Rogue

Inspired by the real HF/OpenAI July 2026 agent-driven intrusion: triage a synthetic action log, decode chunk+XOR+gzip C2, and trace a dramatized K8s/cloud kill chain built from public disclosure, not the real incident's own logs.

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CryptoCabana

CryptoCabana

He never signed the transfer. The place he stashed his secret wasn't as sealed as promised.

medium

Showing 24 of 1600 results