01621nas a2200193   4500000000100000008004100001653001300042653001900055653001600074653001400090653002000104653001300124653001500137100001900152245011700171300001300288490000700301520111900308       2021                            d10aBulgaria10aclassification10acyber range10aEducation10afunctionalities10atraining10aUniversity1 aElitsa Pavlova00aImplementation of Federated Cyber Ranges  in Bulgarian Universities: Challenges, Requirements, and Opportunities  a149-159 0 v503 a<p style="margin-left:20.15pt;">Cyber education has been one of the global challenges in recent years. Attacks are becoming more sophisticated, and it is increasingly difficult to provide a safe working environment. Hyper-realistic virtual environments called cyber ranges help increase the level of cybersecurity training. Access to multi-domain exercises is needed to make full use of their capabilities, combine information technology networks and other appropriate infrastructure. A systematic review of the modern cyber ranges used for teaching and research purposes in higher education institutions has been made. This study aims to analyse cyber range characteristics, functionalities, and requirements for their implementation and integration in accordance with the EU regulations. The results will be used in the development of a conceptual model for a cybersecurity training laboratory at the University of National and World Economy, Sofia, Bulgaria. Its inclusion in the teaching and research process is a relevant, important, and promising area for the future of higher educaiton in cybersecurity.</p>