Introduction

In the past, when we were using a big computer to access the Internet, we are exploring and developing more digital technologies that we could think of. Now we are in an era when digital assets are a common thing. Individuals, companies and large organizations are also involved in digital assets like Cryptocurrency. In this digital world, cryptocurrencies are promising to enhance anonymity and decentralized control over financial transactions. According to the authors Alnıpak and Toraman, this blockchain technology offers many benefits for improving transactional efficiency, transparency and security as seen in applications ranging from supply chain logistics to international payments (Alnıpak & Toraman, 2024). However, this technology also has its bad side as well. This paper will be investigating all the roles of cryptocurrency in the financial privacy and cybersecurity aspects. As on-chain crime becomes increasing, the total value received by illicit cryptocurrency addresses reached an estimated $40.9 billion in 2024, this underscores the scale of the problem (Chainalysis, 2025, p.4). We will be exploring the features of blockchain technologies that protect the user privacy and how cryptocurrencies are used in illegal activities.
This paper will provide all the aspects and argue that the cryptocurrency’s blockchain technologies give to human society a benefit in financial efficiency and user control. The core features of pseudonymity, decentralization and the regulatory environment create risks for financial privacy as well as cybersecurity. These risks are not only in global fraud and money laundering operations but also involved in corporate/organizations wrongdoing. This paper will outline the technological promise of blockchain, then go deeper into the complex legal and ethical issues that we are currently facing. Finally, we will provide a detailed analysis of the security risks that cryptocurrencies pose to individuals, organizations, and the financial system.