China, India and South Korea: How three nations secure high-stakes entrance exams

Exam security: A shared challenge

Every year, millions of students in China, India, and South Korea sit for entrance exams that determine their future. The pressure is immense, and so is the temptation to cheat. Each country has developed its own arsenal of security measures to keep these exams fair.

From the Gaokao in China to the JEE in India and the Suneung in South Korea, authorities leave little to chance. The goal is simple: ensure that every seat earned is the result of honest effort.

China: The Gaokao fortress

China's Gaokao, held over two days in June, is arguably the world's most high-stakes exam. More than 10 million students compete for limited university spots. Security is military-grade.

Exam halls are equipped with metal detectors and mobile phone signal jammers. Students are frisked before entering. In some provinces, even smartwatches and electronic devices are banned entirely. CCTV cameras monitor every room, and authorities deploy drones to patrol school perimeters.

The government also uses AI-powered surveillance to detect suspicious behaviour in real time. Anyone caught cheating faces a ban from exams for up to three years. The message is clear: the Gaokao is a fortress, not a free-for-all.

India: JEE, NEET and the flying squads

India's engineering (JEE) and medical (NEET) entrance exams are held across the country in thousands of centres. The National Testing Agency (NTA) relies on a mix of technology and human oversight.

Students are subjected to frisking, biometric verification, and ID checks. Exam centres have CCTV coverage, and the NTA deploys flying squads that conduct surprise visits. In recent years, the agency has also used AI to detect impersonation by comparing live photos with uploaded ones.

Despite these measures, cheating scandals have occurred. In 2024, a paper leak in Bihar led to the cancellation of the NEET exam for thousands of students. Authorities have since tightened protocols, including the use of encrypted question papers and GPS-tracked delivery vehicles.

South Korea: The Suneung lockdown

South Korea's College Scholastic Ability Test (Suneung) is a single-day event that brings the entire country to a halt. Airplanes are grounded during the listening section, and the stock market opens late to avoid traffic.

Security is equally strict. Students must present identification and undergo biometric fingerprinting. Mobile phones and smart devices are collected before entry. Exam halls are monitored by CCTV, and any student caught using an unauthorised device faces a five-year ban from the test.

The government also uses signal jammers in exam rooms. In 2023, authorities arrested a ring of cheaters who used hidden cameras to leak questions. The incident led to a nationwide review of security protocols.

Common threads and differences

All three countries share a common approach: technology and human vigilance. Biometrics, CCTV, and signal jammers are standard. But each nation tailors its response to local realities.

China relies heavily on AI and state surveillance. India uses flying squads and encrypted paper trails. South Korea combines strict timing with community-wide cooperation. The stakes are equally high, but the methods reflect each country's administrative culture.

What remains constant is the goal: a level playing field for every student. As exam fraud becomes more sophisticated, these measures will likely evolve. The next frontier could be blockchain-based verification of test scores or real-time AI proctoring for remote exams.