CYRIN Is Different From Other Cyber Ranges. Real Attacks. Real Tools. Real Scenarios. CYRIN is Engineered to Provide Superior Training in Three Ways: 1. Independent High Fidelity Training 2. Training Flexibility & Exercise Builder 3. Comprehensive Student Monitoring When it comes to cybersecurity for your organization, you have two choices: invest in training now or pay the price later. ATCorp’s CYRIN® eLearning platform is a simple to use web-based training system that has provided comprehensive training to people in charge of the most sensitive networks in the world — America’s military and first responders.