Template-Type: ReDIF-Article 1.0 Title: Quantum Security in Web 4.0: A New Stage in the Development of the Metaverse Author-Name: Danyila Oliinyk Author-Workplace-Name: Chief Researcher, Sectoral Economy Department, National Institute for Strategic Studies, Ukraine Author-Name: Stepan Koshkarov Author-Workplace-Name: Lecturer in Economic and Computer Sciences, Chernivtsi Cooperative Professional College of Economics and Law, Ukraine Author-Name: Yurii Konizhai Author-Workplace-Name: Salzburg University of Applied Sciences, Ukraine Abstract: The rapid advancement of Web 4.0, or the Symbiotic Web, marks a pivotal shift in the evolution of the Internet, characterized by immersive digital experiences and intelligent, decentralized ecosystems. This paper explores the intersection of Web 4.0, the Metaverse, and quantum security, focusing on the urgent need to secure digital infrastructures against the growing threat of quantum computing. As the Metaverse becomes a dynamic driver of digital transformation and economic development, the integration of post-quantum cryptography and quantum-resistant systems is essential for ensuring data privacy, digital sovereignty, and cyber resilience. The study examines key technological trends - including AI, blockchain, XR, and the Industrial Metaverse - within the context of current geopolitical risks, particularly the war in Ukraine. It highlights international quantum strategies, post-quantum encryption standards, and emerging architectures such as quantum blockchain. The authors argue that a proactive approach to quantum security is imperative for safeguarding future virtual environments, emphasizing Ukraine’s strategic opportunity to build a robust and ethical quantum ecosystem. Journal: Metaverse Science, Society and Law Year: 2025 Volume: 1 Issue: 1 File-URL: https://sciformat.ca/journals/index.php/mssl/article/view/16/10 File-Format: application/pdf DOI: 10.69635/mssl.2025.1.1.16 Keywords: Web 4.0; Metaverse; Quantum Security; Post-Quantum Cryptography; Digital Sovereignty; Industrial Metaverse; Quantum Computing; Quantum Blockchain; XR Technologies; Data Privacy; Cybersecurity; Ukraine; Digital Transformation; Quantum Infrastructure Handle: RePEc:cvj:mssl01:v:1:y:2025:i:1:n:1 Template-Type: ReDIF-Article 1.0 Title: Metaverse and Metatheory Author-Name: Igor Ohirko Author-Workplace-Name: Institute of Printing and Media Technologies, Lviv Polytechnic National University; Scientific Laboratory of Immersive Technologies and Law, Research Center for Digital Transformation and Law, State Scientific Institution Institute of Information, Security and Law of the National Academy of Legal Sciences of Ukraine, Ukraine Author-Name: Yana Usenko Author-Workplace-Name: Appellate Chamber of the Supreme Anti-Corruption Court of Ukraine, Ukraine Abstract: The article outlines the conceptual and methodological foundations of understanding the metaverse as a sociotechnical infrastructure of the "embodied internet", which intertwines the practices of virtual and augmented reality with the services of the physical world. The focus is on the issues of digital identity, agency, and responsibility, as well as the attachment of law and order to events in the virtual environment (electronic jurisdiction). Methodologically, the work is based on a metatheoretical approach. Metatheory is considered as a "level of the second order", which explores the structure, methods and boundaries of application of subject theories, analyzes the rules for the creation of knowledge — axiomatics, derivation schemes, criteria of correctness, completeness and consistency, as well as the conditions for introducing new concepts and procedures for their operationalization. It provides definitional clarity, consistency and reproducibility of knowledge. The article clarifies the content of the metaverse: from the "virtual world" to an interoperable infrastructure with persistent user identity, portability of digital assets, and agreed access and moderation procedures (policy-as-code). It is shown that such a framework provides grounds for combining technical standards (data exchange, interoperability of protocols) with human rights guarantees (privacy, non-discrimination, appealability). Journal: Metaverse Science, Society and Law Year: 2025 Volume: 1 Issue: 1 File-URL: https://sciformat.ca/journals/index.php/mssl/article/view/19/13 File-Format: application/pdf DOI: 10.69635/mssl.2025.1.1.19 Keywords: Metaverse; Digital Identity; Avatar; Electronic Jurisdiction; Metatheory; Metamathematics; Metalogic; Axiomatics; Semantics (Model Theory); Interoperability; Metaanalysis; Human Rights in Digital Environments Handle: RePEc:cvj:mssl01:v:1:y:2025:i:1:n:2 Template-Type: ReDIF-Article 1.0 Title: Reconceptualizing Jurisdiction and Legal Identity in the Metaverse: Elements of a Digital Code Architecture Author-Name: Oleksii Kostenko Author-Workplace-Name: State Scientific Institution “Institute of Information, Security and Law of the National Academy of Legal Sciences of Ukraine”, 3-A Askoldiv Alley, 01010 Kyiv, Ukraine Author-Name: Dmytro Zhuravlov Author-Workplace-Name: Office of the President of Ukraine, Bankova 11, 01220 Kyiv, Ukraine Abstract: The rapid evolution of immersive technologies, decentralized platforms, and AI-driven systems within the Metaverse has exposed significant limitations in traditional legal regulation. This article proposes a modular Digital Code Model as a forward-looking legal framework designed to address the complexities of metaverse environments. Anchored in principles of semantic interoperability, algorithmic governance, and jurisdictional adaptability, the model introduces a layered legal architecture capable of responding dynamically to emerging digital phenomena. Key components include electronic jurisdiction, digital legal personality, AI-powered legal monitoring, and rights-based oversight mechanisms. Emphasizing the need for transnational coherence, machine-readability, and human-centric safeguards, the proposed model offers a scalable solution for regulating virtual spaces, ensuring legal predictability while preserving technological innovation and individual rights. The article outlines the theoretical foundations, structural modules, and implementation pathways of the Digital Code, positioning it as a foundational legal infrastructure for the governance of the Metaverse. Journal: Metaverse Science, Society and Law Year: 2025 Volume: 1 Issue: 1 File-URL: https://sciformat.ca/journals/index.php/mssl/article/view/13/7 File-Format: application/pdf DOI: 10.69635/mssl.2025.1.1.13 Keywords: Digital Law; Digital Code; Metaverse; Artificial Intelligence; Digital Transformation; Legal Regulation Handle: RePEc:cvj:mssl01:v:1:y:2025:i:1:n:3 Template-Type: ReDIF-Article 1.0 Title: Development of the Doctrine of Implementing Artificial Intelligence in Public Administration Author-Name: Larisa Kovalenko Author-Workplace-Name: Yaroslav the Wise National Law University, Department of Administrative Law and Administrative Activity, Ukraine Author-Name: Bogdan Kovalenko Author-Workplace-Name: Zaporizhia National University, Department of Constitutional and Administrative Law, Ukraine Abstract: The historical and legal stages of the formation and development of the doctrine of the introduction of artificial intelligence into public administration are studied. The concept of artificial intelligence in public administration is given. The essence of artificial intelligence in public administration is revealed, its types and principles are substantiated. The regulatory and legal regulation of artificial intelligence in Ukraine is analyzed. The advantages of introducing artificial intelligence into the public administration system and the prospects for the formation and development of artificial intelligence in public administration of Ukraine are substantiated. Attention is drawn to the predicted challenges and risks of using artificial intelligence. The author proposes to make changes and additions to the current information legislation of Ukraine. Journal: Metaverse Science, Society and Law Year: 2025 Volume: 1 Issue: 1 File-URL: https://sciformat.ca/journals/index.php/mssl/article/view/14/8 File-Format: application/pdf DOI: 10.69635/mssl.2025.1.1.14 Keywords: Artificial Intelligence; Digitalization; Public Administration; Doctrine Handle: RePEc:cvj:mssl01:v:1:y:2025:i:1:n:4 Template-Type: ReDIF-Article 1.0 Title: Legal Regulation in the Field of Internal Information Security as a Component of Ukraine's National Security Author-Name: Oleksandr Nikitenko Author-Name: Illia Zhuravel Author-Name: Bohdan Krymchanin Author-Name: Andrii Verbitskyi Author-Workplace-Name: The State Tax University, Ukraine Abstract: Legal regulation in the field of national information policy is guaranteed by the Constitution of Ukraine, the Resolution of the Verkhovna Rada of Ukraine “On the Concept (Fundamentals of State Policy) of National Security of Ukraine,” the Law of Ukraine “On Information,” the Law of Ukraine “On the Protection of Information in Information and Telecommunication Systems,” the Presidential Decree enacting the decision of the National Security and Defense Council of Ukraine dated October 15, 2021 “On the Information Security Strategy,” and other regulatory and subordinate legal acts. Scientific research on ensuring state security in Ukraine’s border regions is wide-ranging, particularly in safeguarding information security against unlawful intrusions. The protection of sovereignty and territorial integrity, as well as the provision of economic and information security, are among the most crucial responsibilities of the state and the shared duty of the Ukrainian people. The article addresses the system of responsible bodies and clarifies the concept and scope of law enforcement agencies in current Ukrainian law and practice. Journal: Metaverse Science, Society and Law Year: 2025 Volume: 1 Issue: 1 File-URL: https://sciformat.ca/journals/index.php/mssl/article/view/15/9 File-Format: application/pdf DOI: 10.69635/mssl.2025.1.1.15 Keywords: Information Security; Rule of Law; Legal Provision; National Security; Artificial Intelligence; Sovereignty; Metaverse Handle: RePEc:cvj:mssl01:v:1:y:2025:i:1:n:5 Template-Type: ReDIF-Article 1.0 Title: Legal Regulation of the Use of Artificial Intelligence in Ensuring State Security in Ukraine’s Border Regions by Law Enforcement Agencies Author-Name: Oleksandr Nikitenko Author-Name: Oleh Predmestnikov Author-Name: Illia Zhuravel Author-Name: Bohdan Krymchanin Author-Workplace-Name: University of the State Fiscal Service of Ukraine, Ukraine Abstract: This study examines the legal regulation of AI in ensuring state security in Ukraine’s border regions amid cross-border crime, migration flows, and hybrid threats. It explores the potential of AI for automating border control, verifying identities, detecting suspicious behavior, forecasting threats, and modeling security scenarios in the metaverse. Through normative analysis and comparative methodology, Ukrainian laws are evaluated alongside the EU AI Act to propose an ethical implementation model ensuring rule of law, human rights protection, and public trust. The integration of AI with the metaverse opens new opportunities for training border guards and simulating hybrid threats. The findings support harmonization of Ukrainian legislation with European standards and emphasize ethical AI governance. Journal: Metaverse Science, Society and Law Year: 2025 Volume: 1 Issue: 1 File-URL: https://sciformat.ca/journals/index.php/mssl/article/view/17/11 File-Format: application/pdf DOI: 10.69635/mssl.2025.1.1.17 Keywords: Border Security; Legal Regulation; Artificial Intelligence; Metaverse; State Security of Ukraine; Legal Governance Handle: RePEc:cvj:mssl01:v:1:y:2025:i:1:n:6 Template-Type: ReDIF-Article 1.0 Title: Legal Framework for Cybersecurity in the Context of the Metaverse Formation Author-Name: Dmytro Prokopovych-Tkachenko Author-Name: Volodymyr Sarychev Author-Name: Vitaliy Derkach Author-Name: Yevheniy Rudenko Author-Name: Volodymyr Matzko Author-Workplace-Name: University of Customs and Finance, Ukraine Abstract: This article provides a comprehensive analysis of the legal challenges and regulatory gaps emerging in the field of cybersecurity amid the rapid development of the metaverse. It explores dilemmas related to user identification, personal data protection, digital property management, and smart contract implementation. The paper proposes the concept of cyber-jurisdiction in metaverse environments and, based on comparative approaches from the EU, USA, South Korea, and Ukraine, formulates proposals for an adaptive legal model for cyber governance, including mechanisms for digital certification, confidential identification, and cyberethical norms in virtual space. Journal: Metaverse Science, Society and Law Year: 2025 Volume: 1 Issue: 1 File-URL: https://sciformat.ca/journals/index.php/mssl/article/view/18/12 File-Format: application/pdf DOI: 10.69635/mssl.2025.1.1.18 Keywords: Cybersecurity; Metaverse; Digital Law; Identification; Artificial Intelligence; Personal Data; Blockchain; Digital Identity; Smart Contract; Regulation; Cyber Defense Handle: RePEc:cvj:mssl01:v:1:y:2025:i:1:n:7