The Main Systemic Engineering Problems of Using Computer and Digital Technologies in Legal Activities in the Context of Ensuring Security Iryna Khomyshyn 1* , Natalia Ortynska 1 , Olha Skochylias-Pavliv 1 , Iryna Andrusiak 1 , Olena Rym 2 1 Institute of Law, Psychology and Innovative Education, Lviv Polytechnic National University, Lviv 79000, Ukraine 2 Department of Social Law, Ivan Franko National University of Lviv, Lviv 79059, Ukraine Corresponding Author Email: khomyshyn.iryna.ua.edu@gmail.com https://doi.org/10.18280/ijsse.120507 ABSTRACT Received: 8 July 2022 Accepted: 3 October 2022 The relevance of the research topic is accompanied by a great demand for digital and computer technologies and their rapid growth in the activities of any organization. Legal activity and security have changed a lot in recent years and also feels the impact of modern digital and computer technologies. The main purpose of the article is to study the main systemic engineering problems of using digital and computer technologies in the legal activities of firms in terms of ensuring security. To achieve this goal, we used the methodology of hierarchical ordering using information and mathematical tools of the theory of graphs and relationships, which allows you to streamline and form a connection between the main systemic engineering problems of using digital and computer technologies in the legal activities of firms. Based on the results of the analysis, we have formed an information model of the hierarchical ordering of the influence of the main systemic engineering problems of using digital and computer technologies in the legal activities of firms in terms of ensuring information security. Our study has a number of limitations, and they are related to the inability to cover all types and types of problems of using digital and computer technologies in legal activities due to a large amount of data and limited work. Further research will require the question of analyzing the impact of Industry 4.0, which is already practically here and with us, in the legal activities of firms. Keywords: digital and computer technologies, computer technologies, security, engineering problems, legal activities 1. INTRODUCTION Legal activity, like any other activity, also uses a number of technical means in its work and strives to ensure technical safety. This is especially important in conditions of total digitization. Digital technologies are constantly developing and require new skills to master them and, along with this, new measures to ensure security. “Digital” jurisprudence should be considered the introduction of computer technology, special computer software, and mathematical methods into law-making and law enforcement. Such implementations are necessary for the collection, storage, and processing of legal information for the most efficient receipt of various information legal services. Today in the legal field there is practically no such type of legal activity, wherever computerization, computer technology, and the Internet are used. The automation of many social processes is gaining momentum. This also applies to the legal profession. Digital and computer technologies in the legal field are developing in the following areas: automation of typical legal services, the use of online legal services, the digital and computerization of public services and their provision online, the transition to an e-justice system, modeling legal decisions based on artificial intelligence. With the advent of digital and computer technologies, jurisprudence is being rationalized. Automation of jurisprudence is widely used: web bots, template constructors, scripts, and search engines for monitoring registration data and judicial registry data, electronic databases of legislative acts, intelligent information systems, and much more. For example, more and more often legal consultations switch to online chat mode, in a few minutes you can conclude an agreement using the algorithms of an online constructor, etc. Thus, a real "LEGAL TECH" revolution is taking place today. It certainly makes the work of lawyers and lawyers, as well as their legal services accessible, and fundamentally changes the very work of lawyers. The combination of law and digital technologies is achieved to a greater extent through the intelligent automation of those actions that need to be performed by a living person (who, as a rule, has a legal education and/or relevant work experience). These actions include search, text editing/replacement, matching, identifying inconsistencies, translation into another language, analysis, interpretation, selection, decision-making, etc. As a result of such automation, the speed is guaranteed to increase, and the accuracy and quality of the work performed are likely to increase. This leads to a reduction in the cost of such legal services since the main pricing factors in legal practice are the complexity of the work performed and the time spent on this. One of the most important factors influencing the formation of modern innovative societies, and Ukrainian in particular, is the availability of information technology. This state of communication systems was preceded by a long and thorny path. The only means of accumulation and storage of information for many generations of our ancestors was the spoken word. The 20th century is the century that gave humanity a wireless telegraph, color, cable, satellite television, International Journal of Safety and Security Engineering Vol. 12, No. 5, October, 2022, pp. 597-602 Journal homepage: http://iieta.org/journals/ijsse 597