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Protection of website content type of unauthorized access
(2023-11-24) Andrushchak, Igor; Kosheliuk, Viktor
The article examines and analyzes the most common modern vulnerabilities, which are especially actively used by attackers when attacking web applications.
SEO analysis of modern and current software products
(2023-11-23) Andrushchak, Igor; Kosheliuk, Viktor
This paper describes in detail the features of the design and development of a software system that allows you to automate the process of SEO site analytics and implement project management
Problems of information cyber security in the financial sector
(Prague, 2022-06-10) Andrushchak, Igor; Kosheliuk, Viktor; Volodymyr, Podoliak
The damage of a targeted impact on financial organizations due to the activation of hacker groups is analyzed. These attacks were mainly directed at the processing of bank cards, ATMs and at the SWIFT system, which is an international system for transmitting financial information and payments. Currently, special attention is paid to the attacks of hacker groups that receive funding from governments and criminal groups to influence the world's leading banks. Based on the assessment of the impact of computer attacks, it was concluded that the banking sector is a vulnerable sector of the economy before computer attacks on information systems that can damage not only small, but also large backbone credit institutions that own more than 60% of the total assets of the banking sector.
Conceptual and software approaches to accounting and information modern organizations
(Florence, 2022-05-13) Andrushchak, Igor; Androshchuk, Igor; Kosheliuk, Viktor
This paper examines conceptual and software approaches to accounting and information management in modern organizations, emphasizing the integration of digital technologies to improve the efficiency, accuracy, and transparency of business processes. The study analyzes contemporary accounting information systems, automation tools, and data management practices that support informed decision-making and organizational sustainability. The findings highlight the importance of scalable software solutions and integrated information environments for enhancing operational performance and adapting to rapidly changing business requirements.
Options for developing a cryptographic two-factor authentication protocol
(Ліон, 2025-12-12) Andrushchak, Igor; Kosheliuk, Viktor
This paper explores options for developing a cryptographic two-factor authentication protocol aimed at improving the security of user authentication in distributed information systems. The proposed approach integrates cryptographic mechanisms with a second authentication factor to strengthen resistance against credential theft, replay attacks, and unauthorized access while maintaining practical usability. The study outlines key design principles, evaluates potential implementation approaches, and discusses their applicability for modern cybersecurity environments.
Audit of information infrastructure objects using DNS tunnel technology
(Kraków, 2026-06-05) Andrushchak, Igor; Kosheliuk, Viktor
This paper investigates the application of DNS tunnel technology as a method for auditing information infrastructure objects by assessing the resilience of network security controls and monitoring mechanisms. The proposed approach demonstrates how controlled DNS tunneling can be used to identify weaknesses in traffic inspection, intrusion detection, and data exfiltration prevention while ensuring that security assessments are conducted in an authorized and measurable manner. The study discusses the effectiveness of the proposed auditing methodology and provides recommendations for improving the detection and mitigation of covert DNS-based communication channels in modern information infrastructures.

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