Consumer trust is one of the main conditions for the wider adoption of digital currency transactions. Although digital payments promise speed, convenience, and new forms of financial inclusion, many users remain hesitant because they fear fraud, identity theft, privacy loss, operational failure, and weak institutional protection. This paper examines how biometric payment systems and blockchain technology can jointly strengthen consumer trust in digital currency environments. Using a literature-based conceptual approach, the paper synthesizes work on trust theory, technology acceptance, digital identity, biometric authentication, and blockchain-enabled payment design. The argument advanced is that the two technologies support different but complementary layers of trust. Biometric systems mainly improve authentication trust by linking access to a user's embodied identity and by reducing dependence on passwords, cards, or other transferable credentials. Blockchain mainly improves transactional and institutional trust by increasing traceability, auditability, tamper resistance, and confidence in record integrity. However, neither technology creates trust automatically. Biometrics can trigger concerns about surveillance, template theft, bias, and exclusion, while blockchain can create anxiety about privacy, scalability, governance, and irreversibility. The paper therefore proposes an integrated trust model in which secure biometrics, privacy-preserving blockchain architecture, clear governance rules, and user-centred design operate together. It concludes that consumer trust rises most strongly when authentication is simple, fraud controls are visible, privacy protections are credible, and institutional accountability remains clear behind the technology.
Priyanka, Monika Chaudhary , "Enhancing Consumer Trust in Digital Currency Transactions: The Integration of Biometric Payment Systems and Blockchain Technology", Vol. 3, Issue 9, 21-12-2025, pp. 31-43.