This paper reports case studies on economic injustice or fraud in Japan, the US, the EU, the UK, and Moldova respectively. This paper is intended to alert governments and leaders of the international community to fraud. A literature review on fraud was conducted. First, this paper presents recent fraud cases related to COVID-19 and why cases are increasing in Japan. Digitization and digital governance can reduce instances of fraud. In order to improve or enhance digitization and digital governance, artificial intelligence (AI) and the role of council with expert scientists will be critical in Japan. Malicious scammers are already using AI to commit fraud, but we and our defenders in the world are hardly using AI. In general, the less digitization and AI governance, the more fraudulent it becomes. Second, the fraud problem is an international issue. This is because the largest fraud case in a generation, in which hundreds of billions of US dollars were stolen, was reported in the US. Similar fraud cases have been reported in the EU, the UK respectively. World leaders do not recognize the enormous economic losses caused by fraud due to fraud deviancy attenuation and the circle of attenuation is widening. There is a lack of investment in countermeasures, the number of reports is low and the circle of attenuation is widening. Governments and the international community need to cooperate, share tools and help each other against organized scammers.