UNAM will require 58,000 prospective students to retake their entrance exams in person after AI-supervised remote testing produced statistically impossible performance spikes. The university took this drastic step to ensure academic integrity after an expert commission identified the digital proctoring process as unreliable.
The Failure of Remote AI Proctoring
Mexico's National Autonomous University of Mexico (UNAM) transitioned to a fully remote entrance examination model for the 2026 academic cycle, utilizing lockdown browser technology and AI-integrated webcam surveillance. Spanning several weeks between late May and early June, the process involved nearly 160,000 applicants. However, the reliance on automated systems proved catastrophic. Once the assessment period concluded and data analysis began, it became clear that the results were fundamentally compromised. The digital proctoring tools failed to maintain the standard of academic integrity expected for such a high-stakes examination, leading to results that diverged wildly from historical testing benchmarks and raised serious questions regarding the feasibility of using AI to oversee large-scale, high-pressure entrance assessments.
Statistical Anomaly and Expert Review
The disparity between historical data and the 2026 results was immediate and alarming. Between 2021 and 2025, an average of 3.5 percent of students reached a score of 100 on the 120-question entrance exam; in 2026, that figure surged to 16.3 percent. The discrepancy at the highest level of performance was even more pronounced. Historical data showed that only 0.9 percent of candidates achieved scores of 110 or higher during the previous four-year window, but this year, 5.5 percent of test-takers hit that threshold. Recognizing these figures as statistical outliers suggesting systematic cheating, UNAM convened a specialized committee of experts tasked with investigating the integrity of the selection process. This committee, formally recognized as the 'Comisión Técnica de Personas Expertas para la Revisión del Proceso de Selección de Ingreso a Licenciatura para el Ciclo Escolar 2026-2027/1,' analyzed the data and ultimately recommended a complete retake.
Mandatory Remediation and University Response
In response to the expert commission’s findings, UNAM has ordered a mandatory in-person 'control exam' to validate candidate eligibility. The scope of this requirement is significant, impacting approximately 58,000 individuals—including those who initially qualified for a spot based on the compromised remote test as well as those falling within the minimum successful score bracket for their programs since 2021. The university administration faces an immense logistical challenge to organize these in-person sessions quickly. According to the school's official news outlet, Gaceta UNAM, the university rector has issued an apology to the many honest students caught in this debacle. While acknowledging the hardship of preparing for and taking a second exam, the administration maintains that the in-person assessment is the only viable path to restoring certainty and guaranteeing equity for all prospective students.
⚖ The Balanced View
Supporting view
The university rector argues that the control exam is an essential step to guarantee equity and restore certainty to the admissions process for all students.
Concerns & criticism
Honest applicants are being forced to prepare for and retake a difficult examination despite having no role in the technical failures or irregularities of the original remote testing system.
→What's next
UNAM is expected to release specific scheduling details for the in-person control exam in the immediate future. Because the academic term is slated to begin on August 10, the university must now decide whether to rush the testing process or officially delay the start of the semester.