The Education Authority in Northern Ireland has said it is making "good progress" to restore access to a school IT system following a cyber attack.
The C2K school system, provided by Capita, is used as a curriculum support and the Education Authority had apologised to those preparing for exams over the Easter break.
In a statement yesterday, the Authority said: "We are continuing to make good progress to restore access to the C2K system following the recent cyber attack.
"Our teams have been working hard through the weekend to restore access to the system safely and securely, starting with post primary schools."
It added: "This work will continue over the coming days, as we move to stand the system back up in all schools as soon as possible.
"Thank you for your patience and understanding."
The Education Authority said the investigation is at an early stage and it "cannot yet be confirmed if any personal data has been affected".
It said it would continue to provide updates on its social media channels and website.
