The integration of Quantum Computing (QC) and Distributed Ledger Technology (DLT) is poised to fundamentally reshape modern accounting by transforming how financial data is processed, secured, and verified. QC, utilising qubits, will exponentially enhance data analytics, risk assessment, and real-time financial forecasting, accelerating complex auditing tasks far beyond the capabilities of classical systems. In parallel, DLT, such as blockchain, provides a decentralised, immutable record of transactions, significantly increasing transparency and trust. This synergy may enable real-time analysis, continuous auditing, and intelligent automation, converting traditional static, centralised processes into dynamic, transparent ecosystems. Together, this convergence may redefine accounting, auditing, and finance, ushering in a new era of digital trust and efficiency. This technological shift may present challenges. Quantum algorithms pose a direct threat to existing blockchain cryptography, necessitating the urgent development of quantum-resistant cryptography and quantum key distribution to protect financial data. Additionally, the profession must adapt; accountants will need to acquire new skills in data science and quantum information theory. Successful adoption will require substantial infrastructure investment, interdisciplinary collaboration, and the creation of new accounting standards to accommodate these quantum-era technologies. While disruptive, the convergence of QC and DLT promises unprecedented efficiency, transparency, and trust in financial reporting and auditing. However, this technological shift presents significant challenges. Quantum algorithms pose a direct threat to existing blockchain cryptography, necessitating the urgent development of quantum-resistant cryptography and quantum key distribution to protect financial data. Additionally, the profession must adapt; accountants will need to acquire new skills in data science and quantum information theory. Successful adoption will require substantial infrastructure investment, interdisciplinary collaboration, and the creation of new accounting standards to accommodate these quantum-era technologies. While disruptive, the convergence of QC and DLT promises unprecedented efficiency, transparency, and trust in financial reporting and auditing.
The integration of Quantum Computing (QC) and Distributed Ledger Technology (DLT) is poised to fundamentally reshape modern accounting by transforming how financial data is processed, secured, and verified. QC, utilising qubits, will exponentially enhance data analytics, risk assessment, and real-time financial forecasting, accelerating complex auditing tasks far beyond the capabilities of classical systems. In parallel, DLT, such as blockchain, provides a decentralised, immutable record of transactions, significantly increasing transparency and trust. This synergy may enable real-time analysis, continuous auditing, and intelligent automation, converting traditional static, centralised processes into dynamic, transparent ecosystems. Together, this convergence may redefine accounting, auditing, and finance, ushering in a new era of digital trust and efficiency. This technological shift may present challenges. Quantum algorithms pose a direct threat to existing blockchain cryptography, necessitating the urgent development of quantum-resistant cryptography and quantum key distribution to protect financial data. Additionally, the profession must adapt; accountants will need to acquire new skills in data science and quantum information theory. Successful adoption will require substantial infrastructure investment, interdisciplinary collaboration, and the creation of new accounting standards to accommodate these quantum-era technologies. While disruptive, the convergence of QC and DLT promises unprecedented efficiency, transparency, and trust in financial reporting and auditing. However, this technological shift presents significant challenges. Quantum algorithms pose a direct threat to existing blockchain cryptography, necessitating the urgent development of quantum-resistant cryptography and quantum key distribution to protect financial data. Additionally, the profession must adapt; accountants will need to acquire new skills in data science and quantum information theory. Successful adoption will require substantial infrastructure investment, interdisciplinary collaboration, and the creation of new accounting standards to accommodate these quantum-era technologies. While disruptive, the convergence of QC and DLT promises unprecedented efficiency, transparency, and trust in financial reporting and auditing.
The rapid evolution of financial technologies (FinTech) and digital assets—including cryptocurrencies, decentralized finance (DeFi), and tokenized capital markets—has created an unprecedented need for secure, scalable, and computationally efficient systems. This study examines the transformative potential of quantum computing in reshaping financial technology infrastructures and digital asset ecosystems. Traditional computational models, constrained by classical encryption limits and the exponential growth of financial data, face increasing inefficiencies in handling real-time risk assessment, portfolio optimization, and transaction verification. Quantum computing, with its capacity for superposition, entanglement, and parallel state evaluation, provides novel opportunities to redefine data security, financial modeling, and cryptographic mechanisms in the digital economy. The research explores how quantum algorithms—notably Quantum Approximate Optimization Algorithm (QAOA), Quantum Fourier Transform (QFT), and Grover’s search algorithm—can enhance financial operations such as market forecasting, fraud detection, and asset pricing. Additionally, it investigates quantum-resistant cryptography to safeguard digital asset networks against the vulnerabilities introduced by future quantum decryption capabilities. By integrating hybrid quantum–classical frameworks, this approach enables the development of sustainable, adaptive, and transparent financial systems. The findings highlight quantum computing’s potential to advance financial inclusion, increase transaction speed, and improve systemic resilience. As global financial markets transition toward quantum readiness, the convergence of FinTech and quantum innovation is expected to redefine how digital assets are managed, traded, and secured—marking a paradigm shift toward quantum financial intelligence.
The complex of processes involved yields Accounting Information Systems (AIS), whereby financial data is recorded, processed, and stored that has important implications not only for decision-making, but also regulatory compliance and stakeholder assurance. While accounting practices have moved towards a digital transformation, accounting systems are increasingly susceptible to advanced cyber threats, data breaches, and financial manipulation. In this paper, a new paradigm of Quantum-Secured Accounting Information Systems (AIS) is proposed as a preventive framework aimed at dealing with the novelty of cybersecurity threats posed by quantum computing. It discusses and critiques how classical crypto-based AIS are open to exposures of some very serious threats and then outlines the ideas for a quantum security aware framework addressing financial data integrity, audit reliability, confidence by stakeholders. By compiling existing interdisciplinary literature, spanning accounting through cybersecurity to quantum technology, the paper constructs a multi-layered architecture of AIS secured with quantum technologies that includes data protection, access control and audit compliance. The paper further relates the implications of these systems for financial reporting, auditing and corporate governance while identifying primary challenges to adoption in terms of infrastructure costs and skills shortages are identified as well as legacy system integration challenges and a lack of quantum standards specific to the accounting profession. Finally, it provides guidelines for future research to empirically test organizational readiness and the impacts of classical vs. quantum secured AIS on audit quality and preventing fraud especially in developing countries. This research contributes to AIS literature by proposing a future-oriented framework that readies accounting systems for the post-quantum era
In the contemporary digital era, secure payment systems are imperative for ensuring trust and reliability in financial transactions. Traditional cryptographic methods, once considered robust, face formidable challenges with the advent of quantum computing. In response, distributed ledger technology DLT has emerged as a promising paradigm for enhancing payment security. This study presents an in -depth analysis of the integration of quantum cryptography and artificial intelligence AI within distributed ledger technology DLT -based payment systems, aiming to enhance security against the evolving landscape of cyber threats. By examining specific vulnerabilities such as Sybil attacks, double -spending, and transaction manipulation, this research proposes a comprehensive framework of AI -driven countermeasures and mitigation strategies. Furthermore, the paper explores future research directions, emphasizing the critical role of quantum -resistant cryptographic techniques and AI in securing DLT payment infrastructures. The findings underscore the potential of combining quantum cryptography and AI to create resilient, secure payment solutions for the digital age.
The internet is evolving—from sharing information (Web 1.0) to exchanging value (Web 2.0). Blockchain technology, also known as distributed ledger technology, is powering this transformation. By using a network of computers, cryptography and irreversible records, blockchain enables secure and transparent transactions without intermediaries. This unlocks the potential to streamline the transfer of digital assets like money, intellectual property, and more, revolutionising industries. Blockchain's rapid rise is fuelled by global investments and a surge in government and corporate innovation. It offers the promise of digitised records, reduced costs, real-time solutions and even greater efficiency and transparency in governance. However, challenges exist alongside these benefits, including the need for regulatory frameworks and adaptation to the potential threats posed by quantum computing. The development of quantum-resistant blockchain solutions will be crucial to ensure security as this technology matures. Like all powerful technologies, blockchain's impact depends on how it's implemented—offering both transformation and potential for disruption.
Financial transactions demand exceptionally robust security, especially in light of the rapid advancement of quantum computing, which poses a severe threat to classical cryptographic mechanisms used in modern banking systems. Among various financial operations, transaction processing remains the most critical and vulnerable component. To address this emerging challenge, we introduce a Distributed Ledger Technology (DLT)-based secure framework for quantum-resistant financial transactions. The proposed architecture leverages lattice-based cryptographic security to ensure resilience against quantum attacks while preserving essential security attributes such as privacy, accountability, and data integrity. Furthermore, to demonstrate its effectiveness, the proposed framework is also compared with existing solutions in the literature.
The advent of quantum supremacy, defined as the point at which quantum computers outperform classical systems in solving computational problems, represents a paradigm shift with profound implications for the field of cryptography, particularly in the context of secure financial transactions. Classical cryptographic techniques, such as public-key encryption systems that rely on the computational hardness of problems like integer factorization and discrete logarithms, are foundational to modern financial security architectures. However, the accelerated computational capabilities of quantum systems, driven by Shor’s and Grover’s algorithms, render these traditional cryptographic methods vulnerable to compromise. This paper delves into the potential impact of quantum computing on cryptographic frameworks, emphasizing its disruptive influence on secure communication protocols, authentication systems, and transaction mechanisms within digital financial ecosystems. A comprehensive analysis of quantum-resistant cryptographic algorithms, collectively termed post-quantum cryptography (PQC), is presented as a critical countermeasure to these emerging threats. The paper explores lattice-based cryptography, hash-based signatures, code-based encryption, multivariate polynomial cryptography, and isogeny-based cryptographic schemes, evaluating their robustness against quantum adversaries. Through a rigorous examination of these algorithms’ theoretical foundations and practical implementations, the study identifies strengths, limitations, and potential deployment challenges. Special attention is devoted to the trade-offs between computational efficiency, security guarantees, and scalability, which are critical considerations for the widespread adoption of PQC in financial systems. Additionally, the study highlights the transitional challenges posed by integrating post-quantum cryptographic methods into existing infrastructures. Financial institutions, reliant on legacy systems and global interoperability standards, face significant hurdles in adopting quantum-resilient solutions. These include the need for standardized cryptographic protocols, cross-platform compatibility, and resistance to side-channel attacks. The research underscores the urgency of proactive measures to safeguard critical financial systems, including the development of hybrid cryptographic models that incorporate both classical and post-quantum techniques during the transition phase. Furthermore, the role of regulatory frameworks in mandating the adoption of quantum-safe protocols is examined, along with the potential for collaborative efforts among governments, financial institutions, and cryptographic researchers to ensure a coordinated response to the quantum threat landscape. The implications of quantum supremacy extend beyond technical considerations, affecting the trust and stability of global financial systems. This paper provides strategic recommendations for mitigating risks, including the prioritization of research into quantum-resistant algorithms, the establishment of testing environments for post-quantum solutions, and investment in the development of quantum-secure hardware. By leveraging these strategies, financial ecosystems can enhance their resilience against quantum-induced vulnerabilities. The discussion is substantiated with case studies and simulations that evaluate the performance of post-quantum algorithms in real-world financial contexts, illustrating their effectiveness in securing digital transactions against quantum attacks. By bridging the gap between theoretical advancements and practical implementations, this paper contributes to the ongoing discourse on the future of cryptography in the quantum era. Ultimately, the research aims to provide a comprehensive roadmap for securing digital financial ecosystems against the disruptive potential of quantum computing, ensuring the continued reliability and integrity of secure financial transactions in the face of emerging technological challenges.