Mexico's Top University Cancelled Thousands of Exam Scores Over Suspected AI Cheating

CNN · 2 months ago · 33 ● 2 sources

Mexico's National Autonomous University (UNAM) invalidated approximately 3,000 of 150,000 admission exam scores after detecting an unusual spike in perfect scores, suggesting widespread cheating via AI tools or advance question access during the university's first online exam administration. The investigation found a tripling of perfect scores compared to previous years, alongside evidence of students using phones, accomplices, and identity theft during testing. All applicants scoring at the passing threshold from this year or the past five years—roughly 58,000 students—must now retake an in-person control exam before the August 10 semester start, leaving enrollment suspended and thousands of qualified candidates in limbo.