This blog post provides a short overview of the issues of regulation surrounding illegal gambling. The growth of online gambling has increased both the scale and complexity of illegal activity. Estimating the size of the illegal gambling market remains challenging. Gambling regulators are increasingly adopting a combined approach, integrating robust licensing frameworks, enforcement tools and processes, cross-border cooperation, and efforts to steer individuals toward regulated markets. Regulators use a range of enforcement tools, including website and payment blocking, financial penalties, and collaboration with internet service providers, payment processors, advertising systems, and major technology platforms. Recently published publications on the topic are linked, along with how Great Britain, Italy, and Norway are handling illegal gambling.