Group 1 - Background checks are increasingly common in the job market, initially targeting executives but now extending to regular employees [11][3] - Over half of background check issues are related to discrepancies in work history, with common problems including inflated or shortened employment durations and fabricated job experiences [3][6] - The real estate industry has a high incidence of background check issues, with 49.3% of candidates having some form of problem, while the education and training sector shows a high rate of false qualifications [10][7] Group 2 - Background checks utilize a color-coded system to indicate the severity of discrepancies, with red indicating serious mismatches and green indicating all information is accurate [6][3] - Many candidates have faced issues due to subjective evaluations from previous employers, which can lead to unexpected failures in background checks [17][14] - The lack of transparency in the background check process often leaves candidates unaware of the specific reasons for their rejection [14][11] Group 3 - Candidates are advised to choose trustworthy contacts for background checks and to communicate clearly with potential employers about the scope and timing of the checks [23][28] - Legal disputes have arisen from background check failures, with many candidates seeking compensation for lost job offers due to issues that were often unrelated to their actual job performance [19][22] - The increasing scrutiny of background checks has led to a culture of sharing experiences among job seekers, highlighting the challenges faced during the process [22][28]