This article discusses information system vulnerabilities associated with the use of personal mobile devices in financial services companies. The recommendations of this study will help to understand the importance of formulating an information security policy in this situation. The use of personal devices by employees has become commonplace in the workplace due to the increased reliance of business processes on Internet-based services and advances in technology. The organization benefits from the fact that employees buy, use their own devices, thus, the organization reduces the cost of providing employees with computer equipment and software for workplaces. However, a company can suffer huge losses if the use and connection of personal devices to the company's information technology infrastructure is not regulated and controlled. Hacking personal devices by intruders allows you to gain unauthorized access to the assets of information systems. Financial institutions handle highly sensitive information, which makes them more vulnerable when using personal devices. A qualitative research method was conducted with specially selected participants working in the information security departments of financial institutions. The study revealed the lack of an information security policy regarding personal devices and the use of an unlimited number of such devices by employees.

Keywords: personal mobile devices, information security, unauthorized access, vulnerabilities, cyber attack

The analysis of the foundations of modern cryptographic systems is carried out. Problems of classical cryptography arising in the development of quantum computers are considered. Considered are cryptographic protocols of quantum key distribution, their advantages and disadvantages. The analysis of stands for simulation of quantum key distribution available on the market is carried out. The rationale for the need to develop a training system has been made. The authors have developed a system for modeling and demonstrating quantum cryptographic protocols BB84, B92 and BB84 (4 + 2), intended for a detailed study of the principles of quantum cryptographic protocols in dynamics. The system provides the process of work both in text and graphic form. The developed system fully meets the needs of teaching students modern quantum information security technologies.

Keywords: information security; encryption; quantum cryptography; modeling; education system

When building complex technical systems, as a rule, the resources of an existing system are used as a basis, which may be redundant due to the lack of a clear definition of what the system is needed for. This necessitates the determination of the system intended purpose, the selection of elements for its construction and management in the process of its operation, aimed at achieving the intended purpose and optimizing the resource support used to build the system. The paper proposes an approach to building a system based on the development of its functioning profile, which characterizes the achievement of its intended purpose, modeling the process of a complex technical system functioning and evaluating the effectiveness of the profile. The use of the proposed methodology will allow, at the stage of building a complex system, to improve the quality and efficiency of designing a complex technical system by taking into account the functional needs of the system, as well as determining the amount of resources required to fulfill them.

Keywords: profile, complex technical system, criticality, system design, system construction, control process automation, functions, tasks, resource

This article discusses and demonstrates the need for writing and functioning of a high-quality information security system for a modern enterprise that performs activities in various fields (industry, energy, humanitarian activities, etc.). Its role in creating conditions is also analyzed. for the economic security of the organization itself and the country as a whole. The paper presents the current classification of information security threats. The activities that are aimed at protecting data in the world of the modern world are analyzed once again, and examples of activities aimed at protecting data in the world of the modern world are given, as well as an example of the most common reasons for its leakage today.

Keywords: information security, economic security of an enterprise, information protection, threats and risks of information security, artificial intelligence

This paper presents methods of processing handwritten biometric data. The initial data are coordinates of a position of a pen on a graphics tablet. For this, the proprietary database of handwriting samples and the open signature database SVC 2004 were used. The proprietary database includes 29 users, 754 random and 754 simple forgeries. At the stage of biometric data processing, the following methods were used – «interpolation of handwriting» (entering points at an equal distance between the initial points of the handwritten signature), the histogram approach, «pen movement speed» (the path traveled by the pen at different stages of handwriting input process). Such methods eliminate the variability of the biometric data over time and over spatial axes. As a result, we recommended a standardization approach (Z-score), discretization (one-dimensional linear interpolation and discretization with variable step based on arithmetic progression) of biometric data. The table of results presents the values of the quality of biometric features. The obtained experimental results will be useful for researchers to improve their studies in the field of biometric security systems

Keywords: handwriting, biometric data, graphic tablet, verification, authentication, standardization, discretization, interpolation, information security

An urgent task in the context of digitalization of all spheres of society is to create a system of protection against the negative impact of digital images on the person. The solution to this problem is impossible without assessing the subliminal impact of audio-visual information. The study presents a solution to the problem of systematization of subliminal factors of audio-visual information and optimization of methods to deal with them. Risk factors and limitations as the basis for the design of the protection system at the level of technical.

Keywords: information security, modeling, risk factors, subliminal impact, digital image

The growing popularity of the use of group robotics, including swarm robotic systems (SRS), actualizes the issues of information security. Known approaches to detecting malicious behavior of agents or malicious information do not take into account the scalability and decentralization properties of SRS, which does not allow ensuring the integrity of information circulating through communication channels within SRS. In turn, the dissemination of malicious information in the process of distributing tasks between SRS agents initially reduces the efficiency of performing these tasks, that is, an attack is carried out on the very first and most critical stage of the system's functioning. The purpose of this work is to improve the efficiency of the functioning of SRS agents in the presence of malicious agents by developing a method for detecting and counteracting the spread of malicious information. The elements of scientific novelty of this work include the following. As part of solving the problem, a number of specific criteria are proposed that take into account the distribution of tasks in the SRS, as well as a classifier based on an artificial neural network to detect malicious information. To improve the accuracy of detection and counteracting the spread of malicious information in SRS, a modification of the reputation mechanism is proposed. A distinctive feature of the modification is not only the formation of an indicator of the truth of the message information in the process of task distribution, but also the assessment of the influence of malicious agents on the process of forming this indicator. The presented solution is implemented in the form of software in the Python programming language, which can be used in modeling decentralized control systems of SRS.

Keywords: swarm robotic systems, task distribution, artificial neural networks, trust and reputation mechanism

The concept of the Internet of Things (IoT) was introduced by Kevin Ashton at the Massachusetts Institute of Technology in 1998. The vision of the concept is that objects, “things”, embrace each other and, therefore, see IoT, in which each object has its own individual volume identity and can interact with other objects. Internet objects can make a big difference in size from small to very large. The Internet of Things is turning into ordinary products such as cars, buildings, and machines into smart devices, connected objects that can communicate with people, applications, and others with devices. In the article, we observe the widespread use of the Internet in large cities and its impact on various industries. The paper discusses the security threat of the Internet of Things, resulting in security recommendations.

Keywords: IoT, NB-IoT, security, security threats, Cybercrime, Computer security

Blockchain technology has been adopted in various fields, primarily in finance, through the use of cryptocurrencies. However, this technology is also useful in cyber security. This article discusses various Blockchain methodologies for the cybersecurity sector proposed by various researchers. This study showed that most researchers are focused on using Blockchain to secure IoT devices, networks and data. This paper looked at the strategies used by earlier researchers to secure three problematic IT areas using Blockchain. The main conclusion of the study was to ensure the integration and uniformity of solutions so that future researchers focus on a single Blockchain to create cybersecurity applications.

Keywords: blockchain, Internet of things, IoT, cyber security, computer security