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Cryptocurrency has become a rapidly developing digital asset class that attracts widespread investor interest due to its decentralized, anonymous, and highly volatile nature. Such volatility creates uncertainty in market movements, making it important to understand the factors that drive fluctuations in returns. This research aims to examine how fundamental indicators namely price, trading volume, and market capitalization affect return volatility, as well as to determine which cryptocurrency demonstrates the highest market efficiency based on risk assessment. The study uses panel data covering the five largest cryptocurrencies by market capitalization (Bitcoin, Ethereum, Tether, USD Coin, and Binance Coin) over the period 2019–2023. The analytical methods applied include panel data regression to identify the determinants of volatility and Value at Risk (VaR) to measure asset risk and efficiency. The findings show that price and trading volume positively and significantly increase return volatility, whereas market capitalization exerts a negative and significant effect, indicating its stabilizing role. Based on VaR analysis, Binance Coin (BNB) emerges as the asset with the highest market efficiency. The study concludes that fundamental indicators play a crucial role in shaping volatility and that BNB offers relatively better risk performance compared to its peers.

The interval between 2018 and 2025 represents a defining epoch in financial assurance, characterized by a systemic collision between traditional audit methodologies and the exponential sophistication of fraudulent actors. This research employs a comprehensive library research methodology, utilizing Systematic Literature Review (SLR) to evaluate the evolving landscape of audit and fraud. The study traces the theoretical migration from Cressey’s Fraud Triangle to multidimensional frameworks like the Fraud Pentagon, which emphasizes the roles of arrogance and competence. Through a forensic examination of catastrophic audit failures including Wirecard, FTX, and the emerging risks of crypto-assets, the research identifies recurring patterns of auditor failure in assessing operational risks and internal controls. Furthermore, the report analyzes the dual-edged impact of Artificial Intelligence (AI); while machine learning algorithms offer enhanced detection capabilities, the rise of Generative AI (GenAI) and deepfake technology has empowered perpetrators to execute sophisticated "synthetic reality" frauds. The study critically evaluates regulatory responses, particularly the revision of International Standard on Auditing (ISA) 240, which mandates a more proactive "fraud lens." The findings suggest that the auditing profession faces an existential crisis of relevance, necessitating a fundamental shift toward a forensic mindset supported by advanced technological integration.

The rise of financial technology (fintech) has significantly reshaped global investment over the last decade. Fintech innovations are increasingly applied in areas such as digital investment platforms, robo-advisors, blockchain-based assets, and cryptocurrency trading. The adoption of fintech in investment continues to grow due to the rising demand for accessibility, transparency, and efficiency in financial markets. Fintech has the potential to democratize investment by lowering entry barriers, expanding financial inclusion, and offering diverse investment instruments for retail investors. Therefore, research on fintech and investment has become an essential topic in recent years. This study uses a qualitative approach with data obtained from the Scopus database, which includes a total of 4,794 articles on fintech and investment published in the last decade (2020–2025). In addition, several software tools such as R Studio, VOSViewer, and Publish or Perish were used for data processing and bibliometric visualization. This study aims to analyze the development of research trends in fintech-driven investment, explore how technology is changing investor behavior, and provide insights for policymakers and practitioners in strengthening a sustainable and inclusive investment ecosystem.

This community service activity aims to increase the understanding of students at State Senior High School 2 Mataram regarding information security by introducing the concepts of coding and cryptography in digital messages. The rapid use of messaging applications among teenagers makes students increasingly vulnerable to cyber threats, necessitating education on how data protection works in online communication. This program is implemented using a descriptive method consisting of planning, implementation, and evaluation stages. The material covered includes basic cryptography concepts, end-to-end encryption mechanisms, and the practical process of the Diffie–Hellman key exchange thru the interactive simulation "Alice and Bob." Learning is designed contextually and participatively so that students can connect theory with the digital applications they use every day. The evaluation results showed an improvement in students' understanding, reflected in their active participation, ability to answer questions, and adequate post-test scores. This activity not only strengthens digital security literacy but also raises students' awareness of the importance of protecting personal data in online communication. This program is expected to be the beginning of more sustainable digital security learning development in the school environment.

This community service activity aims to increase the understanding of students at State Senior High School 2 Mataram regarding information security by introducing the concepts of coding and cryptography in digital messages. The rapid use of messaging applications among teenagers makes students increasingly vulnerable to cyber threats, necessitating education on how data protection works in online communication. This program is implemented using a descriptive method consisting of planning, implementation, and evaluation stages. The material covered includes basic cryptography concepts, end-to-end encryption mechanisms, and the practical process of the Diffie–Hellman key exchange thru the interactive simulation "Alice and Bob." Learning is designed contextually and participatively so that students can connect theory with the digital applications they use every day. The evaluation results showed an improvement in students' understanding, reflected in their active participation, ability to answer questions, and adequate post-test scores. This activity not only strengthens digital security literacy but also raises students' awareness of the importance of protecting personal data in online communication. This program is expected to be the beginning of more sustainable digital security learning development in the school environment.

Relational databases store information in interconnected tables and are widely used for data management and retrieval. However, in certain environments, the original values stored in a relational database cannot be exposed during data retrieval. This limitation creates a challenge because common encryption methods only transform data for storage and do not support mathematical operations needed for value matching. Partially Homomorphic Encryption is a cryptographic approach that allows specific mathematical operations to be performed directly on transformed data without restoring it to its original form. This study proposes the use of Partially Homomorphic Encryption to enable value-based data retrieval while keeping all stored values in their transformed form throughout the entire process. The method relies on homomorphic properties that allow mathematical comparison to be conducted on encrypted data, making the retrieval process possible without revealing the original values. The results show that this approach can perform data retrieval operations in a relational database while preserving the transformed structure of the stored data. The proposed method offers an alternative for environments that require data retrieval without exposing original values and demonstrates the potential of homomorphic techniques in supporting secure and functional data processing in relational database contexts.

This study examines the relationship between market efficiency and digital financial innovation in the context of global financial transformation over the past decade, when fintech, cryptocurrency, and Decentralized Finance (DeFi) have significantly altered price formation and information dissemination mechanisms. The main issue raised is whether the Efficient Market Hypothesis (EMH) theory remains relevant in the face of digital market dynamics characterized by high volatility, speculative behavior, and regulatory uncertainty. The objective of this study is to assess the impact of digital innovation on information efficiency, price transparency, and the stability of modern financial markets. The study used the Systematic Literature Review (SLR) method, examining 15 scientific articles published between 2015 and 2025 from various academic databases. The findings indicate that digital technology increases access and speed of information distribution, but does not always result in consistently efficient markets. Crypto and DeFi markets have been shown to exhibit fluctuating efficiency due to price anomalies, information asymmetry, and weak regulation. Overall, the literature synthesis confirms that market efficiency in the digital era is dynamic and influenced by the interaction between technology, investor behavior, and governance quality. This study concludes that the EMH remains relevant as a basic framework, but needs reinterpretation to suit the complex and rapidly changing characteristics of digital markets.

The usage of blockchain has increased around the world over the years. It has become widely used in various sectors that need transparency, such as accounting, business, and auditing. Blockchains are gaining more popularity after being applied as a system for digital asset ownership, such as cryptocurrency and NFTs (Non-Fungible Tokens). This growing trend of blockchain is followed by the increasing trend of research regarding it in the last decade. Blockchain has the potential to revolutionize the auditing sector and enhance economic accountability due to its decentralized system. Therefore, research regarding blockchain applications in auditing is becoming an important topic. This study adopts a qualitative approach by using datasets retrieved from the Scopus website, from the search result of blockchain auditing, with a total of 1228 articles that were published in the last decade (2015-2025). Furthermore, this study also uses several software programs as data processing tools, such as R Studio, VOSViewer, and Publish or Perish. This study aims to understand the research trend regarding blockchain auditing in the last decade and highlight its implications for the auditing and economic sectors.

This study aims to analyze cryptocurrency investments and the risks faced by beginner investors who own digital assets such as Bitcoin, Solana, XRP, and other coins that have been increasing in value over the past few years, especially among the general public and retail investors. Not only retail investors, but governments also now hold digital assets, as has already happened. However, the unstable price and lack of global legal oversight make investing in cryptocurrency highly risky, especially for those with less knowledge and experience. The methods used in this study include literature review, descriptive analysis of historical price data for cryptocurrency, case studies, and interviews with several beginner investors. The findings show that cryptocurrency can generate large profits in a short time, but the risk of losing capital is also very high. Therefore, having a good understanding of blockchain technology, risk management, and investment psychology before starting to invest is important. This study is hoped to serve as a reference for beginner investors when considering decisions to invest in cryptocurrency.

This research analyzes the fundamental conflict between state regulation and Sharia principles regarding cryptocurrency in Indonesia, aiming to explore the views of Islamic scholars and the legal perspective in the Qur'an and its interpretations. Cryptocurrency has become a popular investment trend, especially among the youth. While the Bank Indonesia (BI) prohibits its use as a legal payment instrument, its trading activity is legalized as an investment asset under the supervision of OJK and BI. Conversely, the MUI Fatwa and the majority of scholars declare crypto transactions as forbidden (haram) due to the presence of elements prohibited in Islamic economics: riba (usury) and gharar (uncertainty). Gharar is linked to the extreme price volatility that encourages speculation (maysir) and the non-physical nature of crypto. Riba, on the other hand, is associated with the potential for unfair profit in lending and staking mechanisms. This prohibition is rooted in the interpretation of the Qur'an (QS. Al-Baqarah: 275 and QS. An-Nisa: 29), which strictly forbids riba and consuming others' wealth through bathil (unlawful) means. Consequently, although legally accepted as an investment asset, many scholars view crypto as violating the principles of justice and transparency in Islamic economics.

This literature review investigates the influence of fair value accounting (FVA) on enhancing financial transparency, particularly within the evolving context of digital assets. By analyzing 103 peer-reviewed articles, the study evaluates how FVA facilitates automated, real-time, and market-based disclosures. It identifies FVA as a tool for increasing investor trust and improving the clarity of financial statements by aligning valuations with current market conditions. The review also highlights the specific challenges of applying FVA to decentralized and volatile digital assets such as cryptocurrencies and non-fungible tokens (NFTs). Although FVA contributes to more transparent and relevant reporting, the implementation of FVA for digital assets is hindered by several critical issues. These include inconsistent valuation methodologies, lack of standardized regulatory guidance, susceptibility to market manipulation, and technological limitations in tracking asset value across decentralized platforms. Furthermore, the rapid pace of innovation in digital finance outstrips the adaptability of existing accounting standards and legal frameworks, creating a gap that weakens the consistency of fair value assessments. The review proposes the integration of FVA within a broader theory of decision-making under uncertainty, emphasizing the need for adaptive and digitization-responsive accounting practices. It suggests practical frameworks that align valuation procedures with the unique characteristics of digital assets while ensuring compliance with emerging regulations. This research encourages ongoing examination and policy innovation to ensure that FVA continues to support transparency and informed decision-making in a dynamic financial landscape.

This study aims to analyze the impact of the Russian invasion of Ukraine on February 24, 2022, on the Indonesian capital market, particularly on the stocks listed in the LQ45 index, as well as on exchange rates and cryptocurrency trading volumes. The research employs a quantitative approach using an event study method, focusing on a 15-day observation window—comprising 7 days before, the day of, and 7 days after the invasion event. The variables analyzed include abnormal return (AR), trading volume activity (TVA), exchange rates, and cryptocurrency transaction volume. The research sample consists of issuers listed in the LQ45 index and the three largest cryptocurrencies by market capitalization—Bitcoin, Ethereum, and Tether (USDT)—selected through purposive sampling. The findings indicate that the Russian invasion of Ukraine had a significant impact on abnormal returns and trading volume activity of LQ45 stocks, as well as on exchange rates and cryptocurrency trading volumes. This geopolitical event emerged as an external factor contributing to market uncertainty, prompting investors to adjust their investment strategies in both stock markets and digital assets. These findings confirm that global conflicts are closely linked to the dynamics of domestic financial markets.

Amidst the dynamic global economy that is often characterized by inequality, the development of an inclusive and equitable Islamic monetary system is a crucial urgency. An Islamic monetary system based on sharia principles and values can offer a promising alternative. In this context, blockchain can be utilized as a transformative technological innovation that can be aligned with the Islamic monetary system. This research utilizes a comprehensive literature review methodology from scientific journals and related books. This literature study analyzes the use of blockchain in the development of an inclusive and equitable Islamic monetary system, exploring the alignment of principles, potential applications and implementation challenges and implications. The findings of this study show that the core characteristics of blockchain such as decentralization, transparency, immutability and cryptographic security are aligned with the objectives and philosophical foundations of Islamic macroeconomics, such as the prohibition of riba, gharar, maysir, fairness of wealth distribution and financial inclusion. Potential applications include developing the efficiency of zakat, waqf and alms, issuing digital sukuk and developing Islamic crowdfunding. Although the opportunities are wide open, the implementation still faces significant challenges, such as sharia compliance issues related to digital volatility, fatwa fragmentation, scalability issues, data security, consumption of shariah-compliant digital assets, and the need for digitalization.

Cryptocurrency in Indonesia has begun to develop and is starting to be widely used by businessmen in Indonesia. This is a phenomenon given the need for accounting treatment for cryptocurrency transactions. This research seeks to explore and test cryptocurrency and blockchain technology with the approach and review of PSAK in Indonesia and focuses on accounting treatment for cryptocurrencies in Indonesia. The purpose of this study is to conduct an accounting study for cryptocurrencies based on PSAK that applies in Indonesia. The study used a review literature model to figure out accounting for cryptocurrencies.

Cryptocurrency has become a new trend in the world of digital finance, but its adoption is still limited among the public. This study aims to analyze the effect of perceived benefits and trust on cryptocurrency purchase intention among students of Bina Sarana Informatika Margonda University. A quantitative approach was used by distributing questionnaires to student respondents. Data processing uses the SPSS 25 application and data analysis is carried out by testing validity, reliability, classical assumptions, multiple linear regression, hypothesis testing and the coefficient of determination. The results showed that partially perceived benefits had no effect, while trust was proven to have an influence. Simultaneously, perceived benefits and trust affect cryptocurrency purchase intention. The findings imply the importance of increasing understanding of the benefits and building public trust, especially students, in cryptocurrency to encourage the adoption of this technology. This research also highlights the need for further education on the potential and risks of cryptocurrencies, as well as the development of supportive regulations to increase trust and adoption among students and the general public

This study examines the phenomenon of Central Bank Digital Currency (CBDC) as a technological innovation that changes the landscape of the global monetary system. In the midst of the rapid development of digital technology and cryptocurrencies, central banks in various countries are starting to consider and develop their own digital currencies. This study aims to comprehensively analyze the aspects of CBDC implementation, including its potential benefits, challenges, and impact on financial system stability and monetary policy. Through a descriptive qualitative approach with a literature study method, this study explores various dimensions of CBDC, including technological architecture, implementation models, and its socio-economic implications. The results of the study show that CBDCs have significant potential in improving the efficiency of the payment system, encouraging financial inclusion, and strengthening the transmission of monetary policy. However, its implementation also presents serious challenges related to data privacy, cybersecurity, and the stability of the banking system. This study makes an important contribution to a comprehensive understanding of CBDCs and their implications for the future of the global financial system.

This qualitative literature review examines the impact of tax policies on cryptocurrency exchange preferences within the context of evolving regulations. With the rapid growth of the cryptocurrency market, understanding the relationship between tax regulations and user behavior has become crucial. This study synthesizes findings from various research articles, highlighting how clear and transparent tax policies can influence user engagement and compliance in cryptocurrency trading. The review reveals that uncertainty regarding tax obligations often leads to user avoidance of cryptocurrency exchanges, while a better understanding of tax responsibilities correlates with more proactive investment management. Furthermore, the analysis indicates that cryptocurrency platforms demonstrating transparency in tax handling are preferred by users. The findings emphasize the necessity for governments to develop supportive tax frameworks and educational initiatives to facilitate healthy growth in the cryptocurrency sector. Overall, the research underscores the importance of regulatory clarity in fostering user trust and participation in cryptocurrency exchanges, ultimately contributing to a more robust and sustainable market.

Cryptocurrency is a blockchain-based technology that is used for all activities so that it has the potential to increase state revenue, especially in terms of taxation. This study aims to determine the implementation of tax policies on Cryptocurrency transactions in Indonesia. This research uses descriptive qualitative methods using secondary and primary data. Secondary data is obtained through journals, books, and tax laws. Based on this research Cryptocurrency can be subject to income tax and value added tax. The results of this study indicate that the implementation of tax policies on crypto asset transactions in Indonesia has referred to the provisions as stated in PMK Number 68 / PMK.03 / 2022. However, there are still some weaknesses in the implementation of this tax policy on crypto asset transactions. In addition, in terms of supervision, it still only adheres to supervision of formal tax obligations. Therefore, supervision of the implementation of tax policies on crypto asset transactions still needs to be improved.