South Korea Top Tax Exam Scorer Confesses to Using Generative AI to Cheat
Cheating on South Korea’s national tax accountant exam involved using a miniature camera and generative artificial intelligence, the top scorer admitted on Sunday according to The Guardian.
The candidate, identified by the surname Han, ranked first in both rounds of the qualification exam held in April and July. His score of 397.5 out of 400 points in the first round—leaving him with only one wrong answer out of 160 questions—sparked widespread skepticism. Han initially denied accusations that he used smart glasses during the tests.
“I cheated using electronic devices and generative AI. My passing the exam with the top score was not the result of fair effort,” Han said, as reported by Dawn.
Investigation Launched After Lawyer Delivers Written Confession
The Seoul Metropolitan Police Agency confirmed receiving a written confession from Han’s legal representative on the morning of November 15. The case was promptly assigned to investigators.
“We received a written confession through the test taker’s lawyer this morning regarding cheating on the tax accountant exam,” the Seoul Metropolitan Police Agency stated.
Han explained the mechanics of the scheme during an appearance on the YouTube channel Attorney Lee Don-ho. Wearing a face mask, he detailed how he photographed test questions with a microcamera, transmitted them to an AI tool, and retrieved the answers on his smartphone.
The candidate told his lawyer he resorted to cheating after struggling financially following his departure from a previous job to start a business.
Testing Authority Fails to Detect Irregularities Without CCTV
The Human Resources Development Service of Korea (HRDK) administers the examination. The agency said that two supervisors were present in the testing room when Han sat for the evaluation.
However, Financial News reported that the HRDK could not review closed-circuit television footage of the specific classroom because the room lacked a CCTV installation.
The agency subsequently interviewed the four supervisory committee members assigned to Han’s first- and second-round exams. All four reported noticing nothing unusual. Grading of the first-round exam revealed no irregularities, and a subsequent expert review of Han’s essay answers for the second-round test produced no objective evidence of cheating.
HRDK president Lee Byung-hoon apologized for the incident. He announced that the agency would file a criminal complaint against the test-taker for obstruction of business.
Meanwhile, the Ministry of Finance and Economy announced plans to discuss suspending the validity of Han’s passing certificate through the Tax Accountant Qualification Review Committee.
Wider Implications for South Korean Standardized Testing
Standardized tests heavily dictate social mobility and career trajectories across South Korea, amplifying public concern over the scandal. The disclosure arrived just days before the scheduled November 19, 2026, administration of the annual national college entrance exam, known as the Suneung.
“The presidential office views the matter very seriously, and because the college entrance exam is next week, we have been working hard to prepare countermeasures,” a senior presidential office official told reporters on Sunday, November 15, 2026, according to The Guardian.
Prime Minister Han Seong-sook acknowledged public anxiety regarding AI-assisted cheating on November 14. Her office said that the government would oversee the process closely to ensure the college entrance exam remains fair and stable.
To combat advanced methods, authorities have intensified scrutiny on electronic equipment. The HRDK reported that an “AI inspector” caught a test-taker wearing smart glasses during a gas engineer certification exam in October 2026. Government officials announced plans to file criminal complaints against students caught using similar devices in university entrance examinations.
Market investigations by SBS News revealed that modified ultra-small cameras and communication devices are widely accessible through specialized equipment vendors. Vendors reportedly offer customized modifications, such as undershirt battery pockets, with communication-enabled kits priced between 700,000 and 800,000 won.
The presidential office convened an emergency meeting on Sunday afternoon, November 15, 2026, led by the presidential chief of staff for policy. Officials decided to comprehensively investigate all suspected cases of AI cheating across national qualification examinations.