SECURITY CHALLENGES IN MODERN COMPUTER NETWORKS AND THEIR MITIGATION

Abstract:

The rapid evolution of modern computer networks has significantly increased their complexity, scalability, and exposure to security threats. The widespread adoption of cloud computing, mobile networks, Internet of Things devices, and software-defined infrastructures has introduced new attack surfaces and vulnerabilities. This paper examines the major security challenges faced by contemporary computer networks, including unauthorized access, data breaches, malware propagation, denial-of-service attacks, and insider threats. In addition, the study analyzes mitigation strategies based on cryptographic mechanisms, network monitoring, intrusion detection systems, access control models, and intelligent security solutions. The findings indicate that an integrated and layered security approach is essential for protecting modern network environments. The study emphasizes the importance of combining traditional security mechanisms with adaptive and intelligent techniques to effectively mitigate emerging network threats.