Group 1 - The article discusses a case where an individual discovered unauthorized salary payments from a construction company while only working in the restaurant industry, highlighting the issue of identity theft in employment records [2] - It provides guidance on how to check personal employment information through the personal income tax app, emphasizing the importance of verifying employment details [3][5] - The article outlines scenarios where employment information may be incorrect, including cases of identity theft and normal discrepancies due to administrative delays [7] Group 2 - It details the steps to take if one finds discrepancies in employment or income records, including how to file an appeal through the personal income tax app [8][12] - The article emphasizes the necessity of addressing both unauthorized employment and income discrepancies to avoid tax liabilities [15] - It advises users to keep documentation and ensure the accuracy of their appeal submissions to maintain tax credit integrity [15]