AI Cheating Fears and Digital Marking Meltdowns Drive Student Protests Across Three Continents

Key points

• Nearly 60,000 university applicants in Mexico were forced to resit entrance exams in 2025 after widespread suspected cheating tainted the original results.
• Portugal triggered what commentators called its worst education crisis in decades after a push to digitise, meaning move from paper to computer systems, school exam marking went badly wrong.
• Student protests linked to exam failures, suspected cheating and grading errors broke out across Mexico, Portugal and India in the same season.
• Families and school leavers face real consequences: delayed university places, extra stress and, in some cases, a year lost to the admissions queue.

Summer is usually when exam anxiety goes quiet. Grades arrive, families exhale, life moves on. Not this year.

Across Mexico, Portugal and India, the private stress of exam season spilled into the streets. Mass protests, government apologies and emergency resits all landed in the same few weeks, reported by The Guardian. The causes differed by country, but a single theme ran through all of them: the pressure to score well in a brutal job market collided with systems that failed students at the worst possible moment.

What actually went wrong in each country?

The crisis hit hardest in Mexico, where nearly 60,000 university applicants had to retake entrance tests after authorities suspected cheating had contaminated the original sittings. For context: in Mexico, a single national university entrance exam can decide whether a student gets a place at all. Miss the cut, wait another year.

Portugal's problem was different but arguably messier. Officials attempted to replace traditional paper-based marking with a digital system, meaning examiners would score students' work on screens rather than on printed scripts. The rollout failed. Marking errors multiplied. Students who had studied for years found their grades unreliable, and the country entered what education observers described as its worst schooling crisis in decades.

India added a third front. Student unrest there centred on grievances that fed the same basic frustration: high stakes, scarce university places and a sense that the system had let people down.

What does this mean for students and families?

For the 60,000 Mexican students forced into resits, the immediate cost was time, money for travel and revision materials, and raw anxiety about whether a second attempt would count fairly. Some will have lost their place in the admissions cycle entirely.

Portuguese students face a longer uncertainty. When a digital marking system produces unreliable scores, there is no quick fix. Appeals take months. University offers get delayed.

The broader signal is uncomfortable. Across all three countries, the job market for young people is competitive enough that a single exam result can genuinely shape a life. That makes every technical failure or cheating scandal feel less like an administrative hiccup and more like a crisis.

Common questions

Is AI cheating actually behind the Mexican scandal?

Authorities suspected cheating without, at time of writing, confirming AI tools as the specific method. Suspicion of AI-assisted cheating is widespread in education globally, but the investigation was still ongoing when this story broke.

Could the same thing happen with digital marking in other countries?

Yes. Many education systems are moving exam marking online to save costs and speed up results. Portugal's experience shows that rushing that transition without thorough testing can produce exactly the kind of errors that destroy student trust.

What can students do to protect themselves?

Keep every piece of evidence you have: rough notes, draft answers, timestamps on submissions. If grades look wrong, appeal quickly, because most systems have tight deadlines for formal challenges.