The relevance of the topic is due to the need to specify the circle of participants in the virtual asset market, since participants are an important element of legal relations in the virtual asset market. However, a clear circle of them has not yet been formed. With the development of the virtual asset market, new participants emerged, which explains the need to specify their circle at the current stage of market formation. The need for such specification is also due to the fact that the role and importance of the virtual asset market for the economy of Ukraine, including for its post-war recovery, require urgent certainty regarding the legal framework for the market functioning, which, in particular, should concern participants, which will allow to solve a problem of regulation of other legal aspects of the market functioning. The purpose of the article is to specify the circle of the virtual assets marker participants and to substantiate their place and role in this market by means of classification. Based on the provided study, author specifies the circle of virtual assets marker participants, which are proposed to be divided into the following functional groups: 1) the main participants – virtual assets service providers, which, depending on the activities carried out, may be business entities, the range of which is presented in Article 55 of the Commercial Code of Ukraine, business entities established under the laws of foreign states, as well as decentralized autonomous organizations functioning as virtual assets service providers; issuers (including miners); offerors; consumers; and individuals conducting transactions with virtual assets in their own interests; 2) participants with auxiliary functions that provide the necessary conditions for the functioning of the virtual asset market by providing services (banking, insurance, legal, consulting, etc.); 3) participants with special functions related to state regulation of the virtual asset market and self-regulatory organizations. The author suggests that the concept of “virtual asset market participant” should be properly enshrined in national legislation.
Purpose: This study explores the transformative impact of financial technology (fintech) on the global financial services industry, focusing on innovations, regulatory implications, and challenges. The research aims to identify key technological disruptions, examine the regulatory landscape, and highlight opportunities and risks introduced by fintech. Methodology/approach: A Systematic Literature Review (SLR) was conducted using SCOPUS, IEEE Xplore, and ScienceDirect. Following a structured protocol, 153 peer-reviewed articles (2014–2019) were analysed through thematic and meta-analytical approaches. The study adopted an interpretative philosophy and used the PICOC framework to refine search precision and synthesis. Results/findings: The analysis reveals fintech’s disruptive innovations in financing and payment systems, such as peer-to-peer (P2P) lending, crowdfunding, blockchain-enabled transactions, and mobile payments. These services have enhanced financial inclusion, operational efficiency, and customer accessibility. Regulatory frameworks have evolved in parallel, though challenges remain in addressing moral hazard, cybersecurity, and compliance. Geographically, Asia, particularly China and Indonesia, leads fintech research and implementation. Conclusion: Fintech has significantly reshaped financial ecosystems by enabling decentralized financial services, accelerating digital transactions, and fostering inclusivity. However, cybersecurity risks, limited regulatory clarity, and uneven global adoption continue to impede its sustainable integration. Limitations: The study is limited to English-language literature from 2014–2019 and may not capture recent post-pandemic developments or region-specific innovations in Islamic or informal economies. Contribution: This paper contributes a comprehensive synthesis of fintech’s evolution, identifies existing gaps, and offers insights for policymakers, financial institutions, and researchers to foster a balanced, secure, and innovative financial environment.
Strengthening the economy through transformation in the tax system and decreasing the role of auditors and auditor-centric approaches should be among the priorities of the Iranian National Tax Administration.Given the country's urgent need to increase revenue sources to compensate for budget deficits, improving the tax collection system becomes even more crucial.According to clause (b) of article (1) of the "Law on Sales Terminals and Taxpayer Systems," blockchain technology can also be considered a type of sales terminal.One of the key features of blockchain is the enhancement of security, transparency, and efficiency.This study aimed to consider reality as closely as possible.For data collection, a library research method has been employed.It appears that a private consortium blockchain is a suitable option for the tax system.Based on the conducted reviews, there is still no definitive consensus mechanism for a tax system.Therefore, the proposed approach in this study is the use of a hybrid consensus mechanism, combining proof-of-authority and delegated proof-of-stake, which would be ideal for a blockchain-based tax system.One of the main features of this model is the use of multi-layered validation.A blockchain-based tax system designed to record all transactions and events related to invoice-based taxes should fundamentally be established on a multi-party smart contract between the buyer, seller, tax authorities of the origin and destination, the buyer's bank, and the seller's bank.To ensure the successful implementation of blockchain, several key considerations must be taken into account.
Iryna Dashko, Олександр Череп, Любомир Михайліченко
The article comprehensively examines cryptocurrencies as a strategic tool for transforming the investment environment in the context of digitalization of the global economy. The current state of the crypto market is analyzed, key trends in its evolution are identified, and the role of digital assets in the formation of new investment models is characterized. Particular attention is paid to determining the investment potential of cryptocurrencies in the long term, taking into account such advantages as decentralization, market openness, technological innovation and accessibility. The author substantiates the concept of “crypto-horizon” - a new investment paradigm that combines a strategic vision of digital finance development with an understanding of the risks and prospects of cryptocurrencies. The author considers the importance of this concept in the formation of a new type of investor capable of operating in the digital economy, effectively managing risks and using innovative financial instruments. The paper also focuses on the key challenges of the crypto market: high volatility, legal uncertainty, information asymmetry, and limited financial literacy. The SWOT analysis made it possible to identify the strengths and weaknesses of crypto investing, as well as promising areas for the development of digital finance. The importance of state regulation, creation of a regulatory framework, development of digital finance infrastructure and raising public awareness in the field of investment is determined. The author emphasizes the need to form an effective regulatory framework for the integration of cryptocurrencies into the financial system. The role of public policy, educational initiatives, and infrastructure solutions in increasing confidence in digital assets is shown. It is substantiated that successful implementation of the “crypto-horizon” concept is possible only if there is a synergy of technology, regulation and investment culture. As a result, the authors conclude that cryptocurrencies are already playing the role of a digital key to the investment future, and their competent integration into national and international financial systems will be the key to the formation of an innovative, flexible and accessible investment ecosystem for the general population.
The article explores the evolution of marketing innovations in the retail sector through the lens of technological development and the transformation of consumer expectations. Five key stages of innovation development are identified—traditional, network based, digital, omnichannel, and innovation-technological—each characterized by specific challenges, opportunities, and influencing factors. The traditional stage was marked by a focus on product policy and individual promotions within the physical store. The network-based stage introduced the integration of IT solutions into logistics, CRM systems, and initial customer segmentation. The digital stage was distinguished by the emergence of online stores, mobile marketing, and personalized communication. The omnichannel stage involved the full synchronization of online and offline channels to ensure a holistic customer experience. The innovation-technological stage includes the extensive implementation of artificial intelligence, AR/VR, blockchain, and emotional analytics. The study draws conclusions about the patterns of transition between stages and the role of innovation in transforming business models in retail. Key directions for further development of marketing innovations are identified, including the technologization of customer experience, intelligent marketing automation, a sustainable approach, Web3 integration, the growth of social commerce, and the use of emotional analytics. However, the implementation of these directions is accompanied by a number of challenges related to the rapid pace of technological change, increasing consumer expectations, and the need to adapt business models to new ethical and environmental standards. In Ukraine, these challenges are further intensified by martial law conditions, market instability, limited resources, and the urgent need for rapid transformation of the retail sector to fit the new realities. It is noted that the development vectors of marketing innovations in retail form a complex yet high-potential system of change that requires strategic thinking, flexibility, and readiness to implement new formats of customer interaction. The article has practical significance for marketing professionals, retail business managers, and researchers working on adapting business practices to the evolving digital economy.
The article is devoted to the study of the problem of harmonization of Ukrainian legislation in the field of crypto-asset market regulation in the context of the implementation of the provisions of the new European Regulation 2023/1114 of May 31, 2023. Given Ukraine’s status as a candidate for membership in the European Union, the task of unifying legal approaches to the definition and classification of digital assets is becoming increasingly relevant. The article provides a comparative analysis of the evolution of the conceptual and categorical apparatus in the European Union, using the provisions of Directive 2018/843, which focuses mainly on combating money laundering, and Regulation 2023/1114, and examines the transition from the term “virtual currency” to the systematic, expanded, and functionally oriented concept of “crypto-asset,” which includes both digital value and digital rights. Particular attention is also paid to the analysis of Ukrainian legislation and recent legislative initiatives, in particular the Law of Ukraine “On Virtual Assets” No. 2074-IX and draft laws No. 10225 and No. 10225-1. In the context of these documents, a detailed comparison of the definitions of “virtual asset” used is carried out and attempts to gradually adapt the Ukrainian conceptual framework to European standards are revealed, including by referring to the technological criterion (use of distributed ledger technology) and expanding the functional content of assets. Discrepancies between the Ukrainian and European approaches have been identified in both the basic terminology and the classification system for crypto-assets. A comparison of classification models has been carried out: the basic three-level structure enshrined in Regulation 2023/1114, which includes asset- referenced tokens, electronic money tokens, and other tokens, and the options proposed in Ukrainian draft laws, which attempt to adapt European categories to national specifics. Attempts to directly transpose the classification model of Regulation 2023/1114 into the Ukrainian legal system and the challenges associated with adapting certain categories of crypto-assets, taking into account the existing legal regime in Ukraine, are analyzed. Proposals are made on the advisability of revising the terminology and further work on the development of a national classification of crypto assets in line with European Union legislation.
Introduction. The rapid development of technology is significantly transforming all spheres of human activity, and the financial industry is no exception. Recent decades have been marked by the emergence and rapid spread of blockchain technologies, which promise to revolutionize traditional approaches to doing business. From decentralized finance (DeFi) to smart contracts and asset tokenization, blockchain opens up unprecedented opportunities to increase transparency, security, efficiency, and reduce operational costs. Purpose: a comprehensive analysis of the prospects and challenges of applying blockchain technologies in the financial activities of enterprises, as well as substantiation of their role in increasing the efficiency, transparency, and security of corporate finances in the modern digital economy. Methods. To achieve the goal, our research will be based on the integrated application of a number of scientific methods. Analysis and synthesis will become the foundation for an in-depth study of existing scientific papers, reports and analytical materials related to the implementation of blockchain technologies in the financial sphere. Through analysis, we can break down complex concepts into components, and synthesis will help to combine the data into a single, holistic picture. A systems approach will allow us to consider the financial activities of enterprises integrating blockchain as a complex interconnected system, assessing the impact of the technology on various aspects of business operations and identifying potential synergies and risks. Results. In this scientific article, the conducted research deeply delves into the scope of application of blockchain technologies in the financial activities of enterprises, revealing both their significant transformational potential and significant challenges on the path to implementation. Conclusions: The application of blockchain technologies in the financial activities of enterprises has enormous potential for the transformation and optimization of many processes. From increased transparency and security to automation and access to new sources of funding, the benefits are clear. However, successful blockchain integration requires careful analysis, overcoming regulatory and technical challenges, and significant investment in skills development.
This article explores changes and trends in volatility pricing of Bitcoin (BTC), and analyzes its historical performance, key drivers, market dynamics and future prospects. By studying macroeconomic and technical indicators, we can fully understand Bitcoin's market behavior patterns and volatility patterns, and explore the impact of regulatory policies, market sentiment and institutional intervention on Bitcoin price.
This document gives information on cryptocurrency scams. While there are legit uses for digital currency, cryptocurrency (crypto) is a popular payment method used by scammers. Crypto is not backed by the government and is not insured like money deposited into a bank. Investments and payments involving crypto do not come with the same legal protections if something goes wrong. It’s like sending someone cash and payments typically are not reversible.
Оксана Гладченко, T. V. Ratushnyak, І. Д. Погорєловська, А. Р. Коротун · 5 authors
У статті розглянуто вплив комп’ютерних технологій, зокрема блокчейн-рішень, ІТ-інфраструктури та суміжних цифрових інструментів, на формування й розвиток криптовалют. Висвітлено історичну еволюцію ІТ-технологій у контексті ключових етапів розвитку криптовалютного середовища – від перших концепцій цифрових гро- шей у 1970-х роках до сучасної високотехнологічної екосистеми. Окреслено, як розвиток персональних комп’ютерів, глобального інтернету, криптографії, peer-to-peer мереж, хмарних обчислень, смартконтрактів і Web3-платформ сприяв можливості створення, функціонування та масштабування цифрових активів. На основі історичного та статистичного аналізу показано, що зростання інвестицій у блокчейн-технології тісно пов’язане з динамікою капіталізації криптовалютного ринку. Проведений регресійний аналіз продемонстрував високий рівень кореляції між ринками блокчейну та криптовалют, а також між ІТ-сектором і криптовалютами, що вказує на їхнє визначальне значення у цифровій економіці. У статті схарактеризовано модель формування криптовалюти, починаючи з концептуального етапу та завершуючи її інтеграцією в платформи обміну, зберігання та реального використання. Особливу увагу приділено ролі смартконтрактів, мережевих архітектур, тестових середовищ, безпекових протоколів та адаптації до регуляторних вимог. Зазначено, що комп’ютерні технології є системоутворюючим елементом сучасної криптовалютної економіки, а блокчейн відіграє роль ядра довіри, прозорості та безпеки в цифровому середовищі. У результаті визначено, що комп’ютерні технології є базовим структурним елементом у побудові функціональної криптовалютної екосистеми, а блокчейн виступає не просто інструментом обліку, а технологічним ядром для забезпечення довіри, децентралізації та безпеки. Таким чином, криптовалюта не є ізольованим цифровим активом, а є результатом системної взаємодії програмного забезпечення, мережевих інфраструктур, безпеки, ринкового середовища та технологічної інноваційності.
У роботі проаналізовано сучасні загрози безпеці електронної комерції та обґрунтовано актуальність використання Blockchain для їх мінімізації. Розглянуто принципи роботи блокчейну Ethereum, смарт-контракти на мові Solidity і засоби інтеграції блокчейну з веб-застосунками (Node.js, Web3 тощо). Реалізовано прототип онлайн-магазину з підключенням до мережі Ethereum: розроблено смарт-контракти для забезпечення безпечних транзакцій (оплата товарів криптовалютою, реєстрація/логін користувачів). Результати тестування прототипу продемонстрували, що використання блокчейн-технології дозволяє підвищити захищеність онлайн-магазину: забезпечується цілісність і прозорість даних транзакцій, унеможливлюється несанкціоноване коригування інформації про замовлення, зменшується ймовірність шахрайства.
The initial driving force behind the development of the cryptocurrency market is the Bitcoin currency. The emergence and expansion of specialized exchanges were essential for trading this cryptocurrency. Consequently, experts in the field recognized the necessity of developing econometric models to forecast Bitcoin’s exchange rate. Proposals presented by econometricians at scientific conferences demonstrated that such models could help minimize risks and potential losses during the stages of investing in Bitcoin and selecting financial instruments, as well as forecast future returns. In this article, we attempt to present methods for constructing predictive econometric models to automate cryptocurrency trading and analyze Bitcoin’s price fluctuations using econometric modeling techniques. The economic development of the cryptocurrency market, the technological architecture of Bitcoin, and the principles of econometric modeling have been systematically examined, and the data were analyzed based on real statistical information. The article is structured in logical order, and the conclusions and recommendations are presented with scientific justification. The statistical methods, analytical charts, and forecasting models used in the study were selected according to the research topic, and the results are expressed clearly and in a scientific manner. The article’s plagiarism index is below 5%, which confirms its status as a fully original scientific work.
Abstract. This study investigates the transformative potential of blockchain technology in optimizing business processes, digital marketing, and achieving sustainable development goals within the context of global digitalization and increasing consumer demands for transparency. The research employs dialectical methods of cognition, systematic approaches, and analysis-synthesis methodologies to examine blockchain's key advantages including transparency, data security, and automation through smart contracts. The investigation reveals that blockchain technology addresses critical challenges in digital marketing, particularly advertising fraud, which cost the industry approximately $84-140 billion globally in 2024. Invalid traffic (IVT) reached 23% of all mobile advertising impressions, with Ukraine experiencing fraud rates as high as 50.31%. The study demonstrates how blockchain's immutable ledger system can verify ad views and clicks, eliminating fraudulent activities while ensuring transparent budget allocation. Key findings highlight blockchain's capacity to revolutionize supply chain management through real-time product tracking from origin to consumer. Case studies include Walmart's product tracking system, H&M's collaboration with VeChain platform for clothing authenticity verification, and De Beers' diamond supply chain transparency initiative. The research identifies IBM Food Trust as exemplifying blockchain's role in reducing food waste and ensuring safety through transparent record-keeping. The study proposes strategic frameworks for integrating blockchain into business and marketing practices aligned with sustainable development principles. Smart contracts enable automated insurance payouts, peer-to-peer energy trading, and decentralized loyalty programs through tokenization. Environmental applications include carbon credit markets, green financing transparency, and anti-greenwashing certification systems. Despite significant advantages including decentralization, transparency, security, and intermediary elimination, implementation challenges persist: energy consumption, scalability limitations, technical complexity, and regulatory uncertainty. The research concludes that blockchain fosters trust, optimizes resource management, and supports ethical practices, enabling enterprises to achieve long-term competitiveness while contributing to sustainable development objectives.
Andrii Pelekhatyi, Nazariy Popadynets, Oksana Tymkovych
The article substantiates the theoretical and methodological foundations for the formation of information and communication support for the inclusive development of territorial communities in the context of post-war reconstruction, digitalisation of public administration and transformation of the local finance system. It is proven that inclusive development emerges as an integrated model of socio-economic participation of the population, which combines the accessibility of public services, equal opportunities, and the involvement of citizens in management decision-making, ensuring the growth of financial capacity and institutional stability of communities. The system-forming role of information as a strategic resource for development, ensuring the transparency of budgetary processes, analytical support for strategic planning and coordination of reconstruction initiatives, has been revealed. It has been established that information inequality, data fragmentation and limited communication between the authorities and the population reduce the effectiveness of resource management and hinder the realization of the potential for inclusiveness. It is shown that integrated digital platforms for public services, open data systems, e-participation tools, and analytical models for decision support from the institutional prerequisites for improving the socio-economic performance of communities, strengthening trust in the authorities, and expanding the revenue base of local budgets, which correlates with the research areas of revenue management and strategic financial controlling. The institutional role of the Ministry of Digital Transformation of Ukraine in the development of integrated electronic services, particularly the Diya platform, as tools for overcoming information barriers and ensuring equal access to public resources is outlined. It is argued that the integration of information and communication systems into strategic management and budgeting mechanisms creates conditions for the inclusive modernisation of local self-government, increased investment attractiveness and sustainable community development. The practical significance of the results is related to the possibility of their use by local self-government bodies to increase transparency, efficiency of revenue management and adaptability of communities in the process of post-war recovery. Keywords: territorial communities, inclusive development, information and communication support, information and communication technologies, local self-government, public administration, decentralization, digitalization, digital services, institutional paradigm, factors of inclusive governance.
As a Secure Payment and IoT Cloud Cryptography Architect for Banking Systems, to specialize in designing and implementing cryptographic security solutions for smart cards, contactless payments, and IoT -driven banking infrastructures. Leveraging advanced cryptographic techniques, For data protection and authentication, this paper proposes integrate AES, RSA, ECC, SHA-3, and HMAC while making sure that industry standards like PCI DSS, EMV, ISO 27001, and NIST are followed. Post-quantum cryptography (CRYSTALS-Kyber, Dilithium), zero-knowledge proofs (ZKPs), It should be fluent in cutting-edge technologies such as blockchain-based security for decentralized identification and IoT payments, secure multi-party computing (MPC), and fully homomorphic encryption (FHE). Additionally, this study focus on AI-driven fraud detection, confidential computing, and hardware security modules (HSM, TPMs) to enhance banking cybersecurity resilience. With a commitment to innovation, this research work develop quantum-resistant, privacy-preserving cryptographic frameworks to safeguard financial ecosystems against evolving cyber threats.
As a result of the digital transformation of the economy, virtual currencies, and in particular cryptocurrency, are not only a new economic phenomenon. The high degree of anonymity and mobility in movement between countries, the sometimes sharply changing value, and their more reliable safety compared to cash — ensure the growing popularity of virtual currencies. However, the emergence of decentralized payment systems and virtual currencies creates serious problems for government authorities in various countries, which are largely due to the fact that even among international organizations a universal approach to the concept of cryptocurrency and virtual currency has not yet been formed.
The article deals with the theoretical basics of digital asset valuation and substantiates the need for their integration into modern financial analysis and corporate finance. It concludes that traditional methods—discounted cash flow (DCF), the capital asset pricing model (CAPM), and comparative multiple analysis—have proven effective in valuing stocks, bonds, and other traditional instruments, but are limited in the digital economy. Cryptocurrencies, utility tokens, digital rights, and non-fungible tokens (NFTs) possess unique features: intangible nature, lack of guaranteed cash flows, high price volatility, dependence on network effects, and decentralization. The article looks into the latest adaptation of valuation methods, including network metrics (market capitalization to transaction volume ratio (NVT), Metcalfe's law), modified fee discounting models, and scenario-based venture approaches. It also explores the using the MV=PQ equation for tokenomics analysis and the determining of a "price floor" by means of mining or staking cost. Particular attention is paid to the role of Big Data and on-chain analytics, which enable applying open blockchain data on transactions and users' activity, as well as using artificial intelligence and machine learning algorithms for price forecasting, identifying fundamental value, and separating it from speculative factors. It emphasizes the need to expand the conceptual framework, to consider legal definitions, and develop specialized models for various token types (utility, security, stablecoins, NFTs) that take into account the technological characteristics of networks, incentive economics, and behavioral factors. It is concluded that integrating digital assets into financial valuation theory requires an interdisciplinary approach that compraises finance, network economics, legal regulation, data-driven analytics, and tokenomics engineering design.
The paper explores the complex issue of accounting and taxation related to digital means of payment, with a particular focus on cryptocurrency. The growing importance of the topic is evident from two main factors: firstly, the rapid increase in cryptocurrency trading volumes worldwide, and secondly, the insufficient technical capabilities of tax authorities to effectively monitor and regulate such transactions. Despite the growing global interest in cryptocurrencies, the taxation and accounting of these digital assets remain a significant challenge, primarily due to the absence of universally recognized and established approaches to their regulation. The study highlights a critical gap in understanding the nature of cryptocurrency. It is unclear whether cryptocurrency should be considered a currency, a commodity, or a form of payment or exchange. This ambiguity contributes to the challenges faced in both legal enforcement and taxation. Without a clear legal definition or status for cryptocurrencies, it becomes extremely difficult to implement consistent taxation policies that can be applied universally. The paper emphasizes that the current regulatory framework for cryptocurrency transactions is fragmented. While a range of legal and regulatory acts exists, they fail to provide a cohesive, standardized approach to governing these digital currencies. In addition to addressing these theoretical issues, the paper systematically analyzes the experiences of various countries in the field of cryptocurrency tax regulation. This comparison reveals certain global trends in the taxation of digital currencies, showcasing both successful models and ongoing challenges. The study also delves into the specific characteristics of cryptocurrency taxation in Ukraine, drawing attention to the unique challenges faced by the country in aligning its tax policies with global standards. The paper identifies several key problems in the taxation of cryptocurrency transactions, such as the lack of comprehensive tax guidelines, the difficulty of tracking transactions, and the challenges in categorizing cryptocurrency for tax purposes. It also discusses the potential future developments in cryptocurrency taxation, both in Ukraine and internationally. The study assesses the prospects of creating a more effective and unified tax system for digital currencies, emphasizing the importance of international collaboration and the need for updated legal frameworks to address the growing role of cryptocurrencies in the global economy.
The article explores the integration of digital payment systems into e-commerce as a key factor in strengthening enterprise economic security. It emphasises the strategic role that digital payments play in ensuring financial stability, reducing operational risks, and enhancing customer trust, especially for small and medium-sized enterprises (SMEs). The study synthesises current academic discourse and industry reports, focusing on the advantages of real-time transaction processing, transparency, compliance with regulatory standards, and operational efficiency. It highlights the risks associated with cybersecurity threats, platform interoperability, and legal non-compliance. Empirical insights are drawn from the integration experiences of Eastern European SMEs using platforms such as PayPal, LiqPay, and Fondy. In addition, the article examines the transformative potential of blockchain-based systems, artificial intelligence, and decentralized finance technologies in reshaping payment infrastructures. It concludes that the integration of secure and innovative digital payment systems is not merely a technological upgrade, but a strategic necessity that directly supports economic resilience and long-term competitiveness in the digital economy.
Crypto assets initially appeared as “virtual currencies”, but it became clear that they had limitations in terms of their function as a currency, particularly in terms of their practical use. Although the speculative aspect is often emphasized, in reality, there are cases where they are adopted as legal tender in emerging countries, suggesting that they are not necessarily limited to being a speculative product. The IMF is calling for stricter regulations due to the rapid growth of the crypto asset market and concerns about systemic risk. In addition, the bankruptcy of FTX has confirmed that the price of cryptocurrencies fluctuates according to the expectations of market participants, and the introduction of financial products undermines price stability. Stablecoins have been developed as a means of supplementing the limitations of cryptocurrencies, and their use is expanding, but financial authorities are calling for stricter regulations. The chain reaction of the crypto asset market crash was caused by excessive expectations, and was the result of rapid growth and delayed regulation. Crypto assets, which were created with the aim of being a decentralized system, are now strengthening their centralized elements, and as the risks are becoming more apparent, it has been concluded that strengthening monitoring systems and regulations is essential.
This article presents a comprehensive analysis of contemporary cyber threats to the financial sector, emphasizing their impact on the stability of financial institutions and payment systems. The study addresses the primary vectors of cyberattacks—phishing, DDoS, malware, targeted APT attacks, and insider threats. Drawing on the experiences of Ukrainian and international financial institutions, the paper identifies key principles for constructing cybersecurity systems, encompassing multi-layered protection, vulnerability management, proper authentication, and incident response planning. Special attention is devoted to artificial intelligence and machine learning as instruments for enhancing cyber resilience. The article also examines the potential for implementing blockchain and decentralized finance (DeFi) within the global financial landscape and the associated information security challenges. The significance of integrated cyber risk management within financial institutions' broader operational risk management framework is underscored. Finally, practical recommendations are offered on optimizing security frameworks, adopting international standards, and bolstering intergovernmental coordination to ensure the financial sector’s long-term resilience in the face of digital transformation.
The article examines the current state and peculiarities of cryptocurrencies regulation in Ukrainian banking system. The legal nature of cryptocurrencies is analyzed through the prism of international and national approaches to their definition, in particular the positions of the European Central Bank and the FATF. The provisions of the Law of Ukraine “On Virtual Assets” and the reasons for its substandard functioning in modern conditions are considered. The position of the National Bank of Ukraine regarding cryptocurrencies, which is characterized by a conservative approach and an emphasis on the hryvnia as the only legal means of payment in Ukraine, has been studied in detail. The NBU's initiatives regarding the introduction of the e-hryvnia as a national digital currency have been analyzed. The main advantages of integrating cryptocurrencies into the banking system are also identified, in particular, the possibility of reducing transaction fees, the potential of attracting foreign investment and the need to enhance consumer protection mechanisms in financial services. The key challenges associated with the implementation of cryptocurrencies have been outlined, including legal uncertainty, high volatility of crypto assets, cybersecurity threats, and the need to improve mechanisms for protecting the rights of financial services consumers. The international experience of cryptocurrency regulation was studied, and three main models of regulation were identified: liberal (Japan, Switzerland), conservative (EU, USA) and restrictive (China, India). Comprehensive recommendations for improving the legal framework of cryptocurrency regulation in Ukraine are proposed, including the necessity of adopting a fundamental law, establishing an effective supervisory system, implementing licensing mechanisms for cryptocurrency exchanges, and developing clear taxation rules. Particular attention is given to the potential of blockchain technology in the banking sector as a tool for increasing transparency and reducing operational costs. The article emphasizes the importance of balancing innovation stimulation with ensuring financial stability, as well as the need for harmonizing Ukrainian legislation with international standards for digital asset regulation. It is concluded that effective cryptocurrency adoption requires not only legal regulation but also the development of digital infrastructure, improvement of financial literacy among the population, and strengthening mechanisms for combating financial crimes. Keywords: cryptocurrency, virtual assets, banking system, e-hryvnia, National Bank of Ukraine, digital currencies.
Heike Joebges, Hansjörg Herr, Christian Kellermann
Abstract Crypto assets’ partial money-like use promotes toxic developments in the financial system. Even though crypto assets might be regarded as close substitutes to traditional money, we show that they lack important functions of money. Traditional fiat money requires several interacting institutions to stabilize its value and regulate its use. In our analysis, we elaborate on the risks associated with the difficulty of setting up regulatory institutions in the crypto sphere and the likelihood of periods of high volatility as well as their repercussions on the traditional financial system due to reciprocal integration. The shift of banking functions into the unregulated area of decentralized finance triggers a new quality of instability in the global financial system with an increasing probability of effects on the real economy. Regulation of crypto assets remains an urgent issue.
М. А. Абрамова, С. В. Криворучко, Oleg V. Lunyakov, Алим Борисович Фиапшев
Existing studies of the problem of the emergence and development of decentralized finance (DeFi) are largely limited to non-principled clarification of certain positions and formulations, with emphasis on technical and technological innovations, far from the level of fundamental research. The authors set the task of theoretical understanding of the ongoing transformation processes in the financial sphere. The purpose of the study was to identify the conditions, driving forces and nature of the process of development of decentralized finance; to define DeFi and identify its sustainable features; and to substantiate the possibilities of considering DeFi as a separate economic category and institution. Setting the goal determined the sequence of its solution in two stages. The first stage implied a higher level of abstraction, an appeal to the theory of money and its modern achievements. The second stage —“movement to the surface”, inclusion in the analysis of specifications accompanying the development of DeFi. The authors used systematic and logical methods , induction and deduction as the main methods, which allowed them to generalize and systematize the ideas about the essence of decentralized finance, identify problems in the modern scientific discourse. As a result, the causes are revealed, and the nature of the process of emergence and development of the sphere of decentralized finance is substantiated, the definition of DeFi is given, the principles of their functioning are highlighted and recommendations on structuring the conceptual apparatus of DeFi are developed. It is concluded that the process of formation and development of decentralized finance is objective and driven by changes in the monetary sphere, technological advances, and problems of traditional finance. At the same time, the stable features of DeFi determine the potential of reproduction of financial relations on a decentralized basis, but at the same time do not allow us to qualify DeFi as an independent category and institution. The results of the study can be used both in elaborating the concept of DeFi development and taken into account as part of the regulatory response to DeFi.