International Journal of Advanced Research in Computer and Communication Engineering

Abstract: The integrity, confidentiality, and availability of information transmitted across interconnected computer systems. As digital transformation expands globally, the growing dependence on cloud computing, Network security represents the collective measures and protocols established to protect mobile connectivity, and the Internet of Things (IoT) has introduced complex cybersecurity challenges. Modern attackers leverage Artificial Intelligence (AI), ransomware-as-a-service, and advanced persistent threats (APTs) to breach traditional defenses. This paper explores the layered architecture of network security, the evolution of encryption techniques, and the development of proactive intrusion detection and prevention systems. Through a detailed discussion of case studies, it also examines the role of emerging technologies such as blockchain and quantum cryptography in redefining future cybersecurity paradigms.

Keywords: Network Security, Cryptography, IDS/IPS, Cybersecurity, Firewalls, AI, Blockchain, Quantum Cryptography

Downloads: | DOI: 10.17148/IJARCCE.2025.141117