FRAUD DETECTION DEVICE, FOREIGNER EMPLOYMENT SYSTEM, PROGRAM, AND METHOD FOR DETECTING ILLICIT LABOR BY FOREIGN WORKER

摘要

The purpose of the present invention is to provide technology for facilitating the detection of illicit labor between foreign workers and host companies.　This fraud detection device comprises: a storage unit for storing information specifying the results of individual companies in a predetermined aggregation period and information specifying the salaries paid to foreign workers in the companies; a withdrawal increase specifying unit for acquiring a history of withdrawals from an account held by an individual foreign worker at a financial institution; a labor shortage determination unit that determines a labor shortage when the actual salary payments relating to results are less than a predetermined first reference value; and a fraud detection unit that employs the history of withdrawals for an individual foreign worker in a company, outputs information indicating a labor shortage when the degree of correlation between an amount of compensation corresponding to the labor shortage of the company and the total decrease in the withdrawal amount during a labor shortage state with respect to the withdrawal amount when not in the labor shortage state is equal to or less than a second reference value, and outputs information indicating a possibility of illicit payment when the degree of correlation is greater than the second reference value.