The Students' Union at University College Dublin has said it has stopped printing student Leap Cards due to data protection concerns.
Student Leap cards are sold by students' unions nationwide. The cards offer discounted rates for transport.
UCDSU said it discovered that the software used easily revealed a massive database of student information.
It said this includes phone numbers, course details, parent's names and addresses of students and former students around the country.
The union said it was worried that accessing this data breached GDPR rules.
The union claimed the company that had the tender from the National Transport Authority to organise Leap Cards had delayed fixing the problem during the summer.
UCDSU said it wanted the issue resolved so it could print Leap Cards again, as the academic year begins next week.
In a statement to RTÉ News, the NTA said that a concern relating to data protection on the part of UCD Students’ Union was bought to its attention.
It said: "We have worked closely with UCDSU to address their concern and have made some changes to the way in which Student Leap data is stored and processed."
The NTA said the changes are currently being tested and are now live on its system.
It added that it can see the issue being resolved by Monday.
