Abstract
In today's world, technology is developing rapidly, and the number of online threats is increasing, making data protection one of the main priorities. This article provides an overview of key areas, methods, and tools for information security in computer networks. The theoretical part examines the main methods of information protection, including data encryption, attack detection systems, identity verification techniques, and access control methods. The practical part of the article includes a quantitative analysis of scientific studies on data protection in computer networks using the Bibliometrix program. The obtained results help identify the most significant studies, authors, and key trends, providing a better understanding of the current state and future prospects of this field. Graphs, tables, and diagrams in the article help visually present information and highlight the most important aspects of the research. Based on the conducted analysis, current trends and directions in information security were identified, helping to understand how technologies are evolving and which trends are crucial for ensuring the security of computer networks in the face of growing threats. Additionally, the article examines issues related to cyber threats, attacks on critical systems, and methods for their prevention.