DECIPHERU · RANGE

Range

Train on real cybersecurity threats.

Scenario practice with signed, ATS-exportable credentials.

Range scenarios are simulated training exercises. Performing these techniques against systems you do not own or have explicit written authorization to test is illegal under 18 U.S.C. § 1030 (Computer Fraud and Abuse Act) and equivalent state and foreign statutes.

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Scenarios
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Top operator (Elo)

15 scenarios

Free tier · 5 starters open
Cybersecurity for AIBeginnerCrucible

Prompt Injection Detection: Classify Eight Inputs

Cybersecurity for AI
30 min·8 steps
Cybersecurity for AIIntermediateCrucible

AI Eval Set Design: Catch Harmful Outputs Before Production

Cybersecurity for AI
50 min·8 steps
Cybersecurity for AIBeginnerCrucible

EU AI Act Applicability: Classify Five AI Deployments

Cybersecurity for AI
35 min·7 steps
Cybersecurity for AIIntermediateCrucible

Direct Prompt Injection: Build the Defense Stack

Cybersecurity for AI
30 min·6 steps
Cybersecurity for AIAdvancedCrucible

Indirect Prompt Injection: Document-Upload Attack Path

Cybersecurity for AI
35 min·6 steps
Cybersecurity for AIIntermediateCrucible

Insecure Output Handling: XSS via LLM Response

Cybersecurity for AI
25 min·6 steps
Cybersecurity for AIAdvancedCrucible

Training Data Poisoning: Detect and Mitigate

Cybersecurity for AI
40 min·6 steps
Cybersecurity for AIIntermediateCrucible

Model Denial of Service: Long-Context Resource Exhaustion

Cybersecurity for AI
30 min·6 steps
Cybersecurity for AIAdvancedCrucible

AI Supply Chain: Compromised Model from HuggingFace

Cybersecurity for AI
35 min·6 steps
Cybersecurity for AIIntermediateCrucible

Sensitive Disclosure: PII Leakage Through LLM Completion

Cybersecurity for AI
30 min·6 steps
Cybersecurity for AIAdvancedCrucible

Insecure Plugin Design: Agent Tool Authorization

Cybersecurity for AI
35 min·6 steps
Cybersecurity for AIAdvancedCrucible

Excessive Agency: Autonomous Agent Acts Without Authorization

Cybersecurity for AI
35 min·6 steps
Cybersecurity for AIIntermediateCrucible

Overreliance: Analyst Trusts AI Output Without Verification

Cybersecurity for AI
30 min·6 steps
Cybersecurity for AIAdvancedCrucible

Model Theft: Extraction Attack via Public API

Cybersecurity for AI
35 min·6 steps
Cybersecurity for AIAdvancedCrucible

Adversarial Examples: Image Classifier Under Attack

Cybersecurity for AI
40 min·6 steps