Update 22 October 2026 7.12 am: Diakle is online again, opinto-opas.diak.fi remains offline.
A security vulnerability affecting PHP, a widely used web technology, has been identified globally today 21st of October 2026. As a precautionary measure, Diakle learning platform and the opinto-opas.diak.fi service are taken offline while the potential impact and any required security measures are being assessed.
This service interruption is a preventive action to help ensure the security of our services and the protection of student and staff data. We are closely monitoring the situation together with our service providers.
If the issue continues, we will provide students with an update tomorrow, 22md of October 2026. We apologise for any inconvenience caused by this temporary disruption.