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Assessed CTEM labs

CTEM Proving Ground Labs: Assessed Hands-On CTEM Labs

CTEM Proving Ground Labs are assessed, scenario based labs that test whether you can actually run an exposure management cycle. You decide what belongs in scope, which findings are real exposures, what to fix first, what evidence proves the risk, and which team owns it. Every decision is graded on the server, there is no partial credit and no answer reveal, and a stage only unlocks the next one when it is fully correct. Pass every stage and you earn a verifiable credential.

Last updated: July 24, 2026

What you will learn

  • How a real CTEM cycle flows from Scoping to Mobilization
  • How security teams make decisions at each stage
  • How to turn findings into owned, trackable remediation work

Explanation

Choose your proving ground lab

How you are assessed

Each proving ground lab presents an enterprise situation and a set of cards. You place every card into the correct decision box for that CTEM stage, then submit. Grading happens on the server, so the answer key never reaches your browser. A wrong layout is rejected with no hint and no answer reveal. A passed stage unlocks the next one and explains why those answers were right, what you achieved, and how the same decision happens in a real company. Passing every stage issues a verifiable credential and a downloadable CTEM cycle report. These are judgment assessments run in the browser: there are no live target machines and no exploitation, because CTEM work is decided in scope, priority, evidence and ownership.

How to apply this

  • Clear the Beginner proving ground lab before attempting the Beginner certification exam
  • Repeat it after studying the lifecycle pages to test your recall under grading
  • Use your graded decisions as a template for your own first CTEM cycle

Common mistakes

  • Reading theory only and never practising the decisions
  • Treating discovery as the finish line instead of prioritization and validation
  • Ending a cycle without a named owner for every fix

Frequently asked questions

Yes. Every proving ground lab is completely free with unlimited retakes. You only need an account so your graded progress and credential can be saved.

Related pages

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Lifecycle Overview

CTEM Lifecycle: The Five Stages Explained

A practical walkthrough of the five-stage CTEM lifecycle with worked examples, common pitfalls, and links to a deep-dive page for each stage.

What is CTEM?

What is CTEM? Continuous Threat Exposure Management Explained

CTEM (Continuous Threat Exposure Management) explained in plain English: definition, why it exists, and how it works as an operating model, not a tool.

Your next credential

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Study the lifecycle, take a free certification exam and earn a publicly verifiable certificate.

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Author

LearnCTEM Editorial Team

Practitioners and educators writing plain-English guides on Continuous Threat Exposure Management.

Reviewed by

Senior CTEM Practitioner Panel

Reviewed for accuracy against public CTEM guidance and real-world program experience.