IMF Executive Board Concludes 2021 Article IV Consultation with Nigeria https://imf.org/-/media/Files/Publications/CR/2022/English/1NGAEA2022001.ashx (PDF)

Financial integrity risks, such as those arising from the potential use of the eNaira for monetary laundering, are mitigated by using a tiered identity verification system and applying more stringent controls to relatively less verified users.

https://www.imf.org/en/News/Articles/2021/11/15/na111621-five-observations-on-nigerias-central-bank-digital-currency