Privacidad financiera en las CBDC: estándares, diseños y adopción comparada
DOI:
https://doi.org/10.31637/epsir-2026-2823Palavras-chave:
CBDC, privacidad financiera, euro digital, anonimato, pagos offline, protección de datos, adopción, gobernanza de datosResumo
Introducción: La investigación examina cómo las monedas digitales de banco central (CBDCs), reconfiguran la privacidad financiera al reemplazar transacciones anónimas en efectivo por registros digitales trazables. Metodología: El trabajo se configura como un estudio cualitativo descriptivo, de base documental y comparativa, sustentado en el análisis de fuentes públicas, regulatorias, académicas y técnicas. Metodológicamente, combina análisis documental y estudio comparado de casos (UE, China, Nigeria, Jamaica, Suecia y Bahamas), junto con el examen de proyectos multi-CBDC (Jura y Dunbar). Resultados: Los resultados muestran que los marcos más robustos integran “privacidad por diseño”, minimización de datos y separación identidad-transacción; con pagos offline de alta privacidad (UE). China aplica “anonimato controlable” mediante umbrales KYC; Bahamas adopta niveles por límites; Jamaica exige KYC universal con trazabilidad total; Nigeria opera en red permisionada con acceso amplio del banco central, lo que se asocia a baja adopción. Los pilotos transfronterizos validan la viabilidad técnica, pero evidencian que la gobernanza y el intercambio mínimo de datos son el cuello de botella. Discusión: La discusión subraya que las elecciones de arquitectura traducen prioridades de política y condicionan la confianza: offline, umbrales y auditorías independientes mejoran la aceptabilidad. Conclusiones: Se concluye que solo una CBDC con garantías verificables y experiencias “similares al dinero efectivo” alcanzarán una adopción sostenida; sin ellas, prevalece la percepción de vigilancia y el uso es marginal.
Downloads
Referências
AFI Global. (2025, 17 de febrero). Central bank digital currency: Lessons from The Bahamas. https://acortar.link/rvHD7d
Annathurai, A., Abdul Wahab, N. y Jamil, N. S. (2024). A review on governance principles of cross-border Central Bank digital currency interoperability: A case study of Project Dunbar. Journal of Governance and Integrity, 7(2), 813-819. https://doi.org/10.15282/jgi.7.2.2024.11509
Atlantic Council. (2026). Central bank digital currency tracker. Atlantic Council. https://www.atlanticcouncil.org/cbdctracker/
Bahamas Sand Dollar Update. (2024). Sand Dollar circulation and wallet metrics. https://n9.cl/k55ty
Bai, H., Cong, L. W., Luo, M. y Xie, P. (2025). Adoption of central bank digital currencies: Initial evidence from China. Journal of Corporate Finance, 91, 102735. https://doi.org/10.1016/j.jcorpfin.2025.102735
Baker, C. (2024). Examining the potential of the JAM-DEX® CBDC to improve financial inclusion in Jamaica. In Advances in Finance, Accounting, and Economics (pp. 170-193). IGI Global. https://doi.org/10.4018/979-8-3693-5588-6.ch012
Bank for International Settlements. (2021). CBDCs: An opportunity for the monetary system. BIS. https://www.bis.org/publ/arpdf/ar2021e3.pdf
Bank of Canada. (2025). Privacy-Enhancing technologies for CBDC solutions. Bank of Canada. https://www.bankofcanada.ca/2025/01/staff-discussion-paper-2025-1/
Bank of England. (2023). The digital pound: a new form of money for households and businesses? Bank of England. https://acortar.link/FAUOMZ
Bank of Jamaica. (2025, 16 de enero). CBDC FAQs. https://boj.org.jm/core-functions/currency/cbdc/cbdc-faqs/
Beja, A. y Correia Barradas, B. (2023). Central bank digital currency: a focus on anonymity. In Information Technology and Law Series (pp. 107-124). T.M.C. Asser Press. https://doi.org/10.1007/978-94-6265-579-9_7
Bijlsma, M., van der Cruijsen, C., Jonker, N. y Reijerink, J. (2023). What triggers consumer adoption of Central Bank Digital Currency? Journal of Financial Services Research, 65(1), 1–40. https://doi.org/10.1007/s10693-023-00420-8
BOFIT – Bank of Finland Institute for Emerging Economies. (2023). China’s e-CNY pilots and use cases. https://www.bofit.fi/en/monitoring/weekly/2023/vw202328_1/
Bordo, M. D. (2022). Central bank digital currency in historical perspective: another crossroad in monetary history. Capitalism: A Journal of History and Economics, 3(2),
421-442. https://doi.org/10.1353/cap.2022.0015
Bruegel. (2025, 1 de junio). On the digital euro holding limits. https://www.bruegel.org/analysis/digital-euro-holding-limits
Carvalho Silva, E. y Mira da Silva, M. (2025). Central bank digital currency: a multivocal literature review. Journal of Internet and Digital Economics. https://doi.org/10.1108/jide-03-2024-0013
CBDC Tracker. (2024). Nigeria eNaira usage statistics. https://www.atlanticcouncil.org/cbdctracker/
CBDC Tracker. (2026). CBDC tracker. Today’s Central Bank Digital Currencies Status. https://cbdctracker.org/
Central Bank of Nigeria. (2021, octubre). Design paper for the eNaira [Documento técnico]. https://n9.cl/uaq2rt
Ceylan, F. (2024). A review of central bank digital currency: Current status and changing trends. İzmir İktisat Dergisi, 39(2), 568-589. https://doi.org/10.24988/ije.1422562
Chukwuere, J. E. (2021). The eNaira - Opportunities and challenges. Journal of Emerging Technologies, 1(1), 72-77. https://doi.org/10.57040/jet.v1i1.92
CNIL. (2023, 11 de diciembre). Digital euro: What is at stake for privacy and personal data protection? https://n9.cl/efqu4
CoinGeek. (2025). Bahamas Sand Dollar adoption and merchant onboarding. https://coingeek.com/bahamas-to-force-banks-to-support-its-cbdc/
Cotugno, M., Manta, F., Perdichizzi, S. y Stefanelli, V. (2024). Ready for a digital Euro? Insights from a research agenda. Research in International Business and Finance, 67, 102117. https://doi.org/10.1016/j.ribaf.2023.102117
DaCosta, V. (2024, 14 de enero). JAM-DEX: Jamaica’s central bank digital currency. https://acortar.link/Q0ls6l
Digital Euro Association. (2023, 22 de junio). Lessons from the first implemented CBDC: The Sand Dollar. https://digital-euro-association.de/blog/lessons-from-the-sand-dollar
eNaira. (2023, 30 de junio). Design Paper. https://enaira.gov.ng/design-paper/
European Central Bank. (2019). Exploring anonymity in central bank digital currencies. (Occasional Paper Series).
European Central Bank. (2024). Digital euro and privacy. https://acortar.link/9XkXhU
European Central Bank. (2024, 2 de diciembre). Progress on the preparation phase of a digital euro. https://acortar.link/4TACr4
European Central Bank. (2025, October 30). Progresos en el euro digital. European Central Bank. https://www.ecb.europa.eu/euro/digital_euro/progress/html/index.es.html
European Commission. (2021, 31 de diciembre). Binding Corporate Rules (BCR). https://n9.cl/rfcc9
European Data Protection Supervisor. (2023, 29 de marzo). TechDispatch #1/2023 – Central bank digital currency (pp. 1–12). https://n9.cl/i3svs
European Parliament. (2023). A legal framework for the digital euro (PE 741.518). Economic Governance and EMU Scrutiny Unit. https://n9.cl/3iim4
Fantacci, L. y Gobbi, L. (2021). Stablecoins, central bank digital currencies and US dollar hegemony. Accounting, Economics, and Law: A Convivium, 14(2), 173-200. https://doi.org/10.1515/ael-2020-0053
Fernández, M. Á. E., Bas, D. S. y Alonso, Y. S. L. N. (2025). Un análisis de las divisas virtuales centralizadas (CBDC) y de la propuesta del euro digital. REVISTA PROCESOS DE MERCADO, 283-300. https://doi.org/10.52195/pm.v22i1.1015
Guo, S., Kreitem, J. y Moser, T. (2024). Dlt options for cbdc1. Journal of Central Banking Theory and Practice, 13(1), 57-88. https://doi.org/10.2478/jcbtp-2024-0004
Huang, J. (2025). Impact assessment of digital currency pilot programs on regional financial stability: A difference-in-differences model analysis based on 15 pilot cities in china. Elsevier BV. https://doi.org/10.2139/ssrn.5853935
Human Rights Foundation. (2024). CBDC Tracker: Bahamas Sand Dollar. https://cbdctracker.hrf.org/currency/the-bahamas
Indira, R., Alamsyah, A. y Yunita, I. (2025). Central bank digital currencies: A technical exploration of infrastructure, access, and crossborder models. 2025 IEEE International Conference on Industry 4.0, Artificial Intelligence, and Communications Technology (IAICT), 264-269. https://doi.org/10.1109/iaict65714.2025.11100853
Inozemtsev, M. I. y Nektov, A. V. (2022). Digital platforms for cross-border settlement of CBDC. In The Platform Economy (pp. 131-145). Springer Nature Singapore. https://doi.org/10.1007/978-981-19-3242-7_9
Intereconomics. (2023). The evolution of Sand Dollar. https://n9.cl/jmwl49
International Monetary Fund. (2024). Central Bank Digital Currency: Data use and privacy protection (Fintech Note 2024/004). https://n9.cl/37cb3
Jabbar, A., Geebren, A., Hussain, Z., Dani, S. y Ul-Durar, S. (2023). Investigating individual privacy within CBDC: A privacy calculus perspective. Research in International Business and Finance, 64, 101826. https://doi.org/10.1016/j.ribaf.2022.101826
Jamaica Information Service. (2024). JAM-DEX adoption figures. https://n9.cl/gthfr
Julin, E. (2022). The Swedish e-krona: A means of guaranteeing the possibility of making payments for all. In Central Banking, Monetary Policy and the Future of Money (pp. 187-208). Edward Elgar Publishing. https://doi.org/10.4337/9781800376403.00014
Kiff, J. (2026, February 10). Jurisdictions where retail CBDC is being explored. Kiffmeister Chronicles. https://acortar.link/0gCVIQ
Kaur, G. (2024). Privacy implications of central bank digital currencies (CBDCs): A systematic review of literature. EDPACS, 69(9), 87-123. https://doi.org/10.1080/07366981.2024.2376794
Kshetri, N. y Loukoianova, E. (2022). Data privacy considerations for central bank digital currencies in Asia–Pacific countries. Computer, 55(3), 95-100. https://doi.org/10.1109/mc.2022.3141228
Laboure, M., H. P. Müller, M., Heinz, G., Singh, S. y Köhling, S. (2021). Cryptocurrencies and CBDC: the route ahead. Global Policy, 12(5), 663-676. https://doi.org/10.1111/1758-5899.13017
Ledger Insights. (2023, 13 de abril). Sweden’s e-krona project explores freedom of payment providers. https://acortar.link/O9QMAQ
Ledger Insights. (2024). JAM-DEX adoption, wallets and incentives. https://www.ledgerinsights.com/jamaica-cbdc-incentivize-merchants-jam-dex/
Nairametrics. (2024, 20 de julio). eNaira makes up less than 1% of currency in circulation https://nairametrics.com/
Náñez Alonso, S. L., Echarte Fernández, M. Á., Sanz Bas, D. y Kaczmarek, J. (2020). Reasons fostering or discouraging the implementation of central bank-backed digital currency: a review. Economies, 8(2), 41. https://doi.org/10.3390/economies8020041
Náñez Alonso, S. L., Ozili, P. K., Hernández, B. M. S. y Pacheco, L. M. (2025). Evaluating the acceptance of CBDCs: Experimental research with artificial intelligence (AI) generated synthetic response. Quantitative Finance and Economics, 9(1), 242-273. https://doi.org/10.3934/qfe.2025008
Napieralska, A. y Kępczyński, P. (2024). Balancing transparency and privacy in central bank digital currencies (CBDCs). En Advances in Finance, Accounting, and Economics
(pp. 208-223). IGI Global. https://doi.org/10.4018/979-8-3693-1882-9.ch013
Ozili, P. K. (2022). CBDC, Fintech and cryptocurrency for financial inclusion and financial stability. Digital Policy, Regulation and Governance, 25(1), 40-57. https://doi.org/10.1108/dprg-04-2022-0033
Ozili, P. K. y Alonso, S. L. N. (2024). Central bank digital currency adoption challenges, solutions, and a sentiment analysis. Journal of Central Banking Theory and Practice, 13(1), 133-165. https://doi.org/10.2478/jcbtp-2024-0007
People’s Bank of China. (2022). Progress of research & development of E-CNY in China. http://www.pbc.gov.cn/en/3688110/3688172/4157443/4293696/index.html
Pocher, N. y Veneris, A. (2021). Privacy and transparency in CBDCs: A regulation-by-design AML/CFT scheme. 2021 IEEE International Conference on Blockchain and Cryptocurrency (ICBC), 1–9. https://doi.org/10.1109/icbc51069.2021.9461090
Raskin, M. y Yermack, D. (2018). Digital currencies, decentralized ledgers and the future of central banking. In Research Handbook on Central Banking. Edward Elgar Publishing. https://doi.org/10.4337/9781784719227.00028
Sanctionscanner. (2025). Digital yuan adoption metrics. https://n9.cl/mr6xg
Santaolalla Montoya, C. (2024). Bitcoin vs CBDC. CUADERNOS DE DERECHO TRANSNACIONAL, 16(1), 578-602. https://doi.org/10.20318/cdt.2024.8436
Shafranova, K., Navolska, N. y Koldovskyi, A. (2024). Navigating the digital frontier: A comparative examination of Central Bank Digital Currency (CBDC) and the Quantum Financial System (QFS). SocioEconomic Challenges, 8(1), 90-111. https://doi.org/10.61093/sec.8(1).90-111.2024
Sisodia, H. (2024). Case study on the Sand Dollar CBDC of the Bahamas. In Advances in Finance, Accounting, and Economics (pp. 298-314). IGI Global. https://doi.org/10.4018/979-8-3693-1882-9.ch018
Sveriges Riksbank. (2023). E-krona pilot. https://n9.cl/b6rjw
The Payments Association. (2024, 16 de septiembre). How CBDCs can enhance cross-border inefficiencies. https://acortar.link/YWiOxp/
Themistocleous, M., Rupino da Cunha, P., Tabakis, E. y Papadaki, M. (2023). Towards cross-border CBDC interoperability: Insights from a multivocal literature review. Journal of Enterprise Information Management, 36(5), 1296-1318.
https://doi.org/10.1108/jeim-11-2022-0411
Tronnier, F. y Qiu, W. (2024). How do privacy concerns impact actual adoption of central bank digital currency? An investigation using the e-CNY in China. Quantitative Finance and Economics, 8(1), 126-152. https://doi.org/10.3934/qfe.2024006
Tronnier, F., Harborth, D. y Biker, P. (2023). Applying the extended attitude formation theory to central bank digital currencies. Electronic Markets, 33(1). https://doi.org/10.1007/s12525-023-00638-3
Tronnier, F., Harborth, D. y Hamm, P. (2022). Investigating privacy concerns and trust in the digital Euro in Germany. Electronic Commerce Research and Applications, 53, 101158. https://doi.org/10.1016/j.elerap.2022.101158
Vessio, M. y Adekunbi, A. (2024). Central bank digital currencies (CBDCs): Exploring “technical privacy” through the lens of Nigeria’s eNaira. Annual Banking Law Update 2024, Centre for Banking Law, University of Johannesburg. https://centaur.reading.ac.uk/118963/
Wang, H. y Gao, S. (2023). The future of the international financial system: The emergingCBDCnetwork and its impact on regulation. Regulation & Governance, 18(1), 288-306. https://doi.org/10.1111/rego.12520
Wenker, K. (2022). Retail central bank digital currencies (CBDC), disintermediation and financial privacy: the case of the Bahamian Sand Dollar. FinTech, 1(4), 345-361. https://doi.org/10.3390/fintech1040026
Yousaf, I. y Goodell, J. W. (2023). Linkages between CBDC and cryptocurrency uncertainties, and digital payment stocks. Finance Research Letters, 54, 103765. https://doi.org/10.1016/j.frl.2023.103765
Zafar, A. (2026). Privacy as institutional design: A legal-technological analysis of CBDC governance and compliance. Computer Law & Security Review, 60, 106258. https://doi.org/10.1016/j.clsr.2025.106258
Zhu, Z. y Zhou, X. (2025). How does digital RMB encourage enterprises’ oversea investment behaviors? Evidence from the pilot project of e-CNY. Finance Research Letters, 108877. https://doi.org/10.1016/j.frl.2025.108877
Downloads
Publicado
Como Citar
Edição
Secção
Licença
Direitos de Autor (c) 2026 Pablo García González, Sergio Luis Nañez Aloso

Este trabalho encontra-se publicado com a Licença Internacional Creative Commons Atribuição-NãoComercial-SemDerivações 4.0.
Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under Creative Commons Non Commercial, No Derivatives Attribution 4.0. International (CC BY-NC-ND 4.0.), that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
