AbstractRecently, Japan has been grappling with various forms of consumer fraud. Consumer fraud victimization causes not only monetary losses but also nonmonetary costs such as emotional stress and psychological trauma. Therefore, it is necessary to investigate the factors associated with the risk of consumer fraud victimization in order to identify vulnerable groups and implement suitable prevention measures. Consequently, this study aims to analyze the sociodemographic and routine activity factors associated with consumer fraud victimization risk in Japan. Drawing on data from a social survey of residents in Chiba Prefecture, Japan, this study employs a series of logistic regression models. This study demonstrates that while using social networking services is unrelated to respondents’ likelihood of experiencing consumer fraud victimization, the frequency of contacting individuals whom respondents have only met online was statistically linked to increased consumer fraud risk. Additionally, only 10.7 to 31.9% of respondents were aware of the available support services for victims of consumer fraud and related issues. This study proposes that social networking providers could aid in preventing consumer fraud by displaying warning messages when users send messages, alerting them to possible threats.