More students are cheating in GCSE and A-level exams in England, with the number caught last summer up a quarter on the previous year, new figures show.
Exam boards issued 2,715 penalties to students for malpractice in 2017 against 2,180 in 2016, Ofqual said.
Most were penalised for taking mobile phones into the exam, while just under a fifth were pulled up for plagiarism.
The rise in cheating came as new tougher GCSEs in English and maths were introduced for the first time.
Exams regulator Ofqual, which published the figures, describes malpractice as any breach of the rules which might undermine the integrity of an exam.