Cybercrime and the Law: Evaluating the Effectiveness of the Cybercrimes Act 2015 in Combating Online Fraud in Rivers State

The proliferation of internet access and digital financial services in Nigeria has been accompanied by a surge in cybercrime activities, particularly internet fraud commonly referred to as "Yahoo-Yahoo." Rivers State, located in the South South geopolitical zone, has witnessed growing incidences of online financial fraud targeting both individual citizens and corporate entities. This study evaluates the effectiveness of the Cybercrimes (Prohibition, Prevention, etc.) Act of 2015 in combating online fraud in Rivers State. A qualitative descriptive methodology was employed, combining semi-structured interviews with cybercrime investigators at the Nigeria Police Force and the Economic and Financial Crimes Commission offices in Port Harcourt, alongside analysis of prosecution records between 2020 and 2024. Secondary data was sourced from court judgments, EFCC annual reports, and academic publications. The findings indicate that while the Cybercrimes Act provides a comprehensive legal framework, enforcement is hampered by limited forensic capacity, inadequate inter-agency data sharing, and challenges in securing electronic evidence admissible in court. The study also identifies legislative loopholes related to jurisdiction and mutual legal assistance in cross-border cybercrime cases. Recommendations are made for capacity building within law enforcement, reform of evidence admissibility standards, and expanded digital literacy campaigns. This research adds to the existing literature on cybercrime law in Nigeria and provides actionable recommendations for institutional improvement in South South Nigeria. Keywords: cybercrime, Cybercrimes Act, online fraud, Rivers State, digital evidence.