The University of Otago is warning students of the risks of buying essays and answers to previous exams online.
Cheating at universities has come under the spotlight as authorities investigate a ghost-writing service for Chinese students.
This comes after the New Zealand Qualifications Authority (NZQA) was tipped off about a company called Assignment4U, which reportedly used a network of tutors to write assignments for Chinese-speaking students at New Zealand tertiary institutions.
NZQA initially halted an investigation into the website for lack of evidence, but resumed it following a report on Sunday, which brought to light new information.
A search of the Assignment4U website found no evidence it was offering services to Otago students. The Otago Polytechnic and Otago University sections of the site were empty.