The world of communications is witnessing rapid development, which has imposed increasing challenges in the field of data encryption and transmission, especially with the widespread reliance on high-speed networks and real-time communication systems. Protecting information from cyber threats has become an urgent necessity to ensure data confidentiality, integrity, and continuity of communication services. Encryption technologies are considered one of the fundamental pillars in securing data transmission, as they play a vital role in protecting information exchanged over communication networks from unauthorized access or eavesdropping. With the advancement of real-time communication systems (RTCs), the need has emerged for advanced encryption solutions capable of achieving a balance between high performance and cybersecurity requirements. Furthermore, securing data transmission in high-speed communication networks faces growing technical challenges, requiring the design of secure protocols capable of countering various cyberattacks. In this context, quantum communication technologies represent a significant breakthrough in information security, as they offer high levels of protection based on quantum physical principles, making interception or manipulation extremely difficult. The role of communication engineering is crucial in developing technical solutions to prevent eavesdropping and jamming attacks, through improving system design and employing advanced techniques for early attack detection and effective mitigation. This contributes to enhancing network reliability and ensuring service continuity in sensitive and critical environments. Dr. Mohammed Kadhim Rahma/Head of the Department of Communication Engineering Technologies Al-Mustaqbal University… the first among private universities in Iraq