ITD are investigating four major incidents that may have started early morning / late last night.
At this stage it is not clear whether these issues are related or not. It is likely that other system will be affected.
We will provide additional information when we can, during this time please bear with us.
If you have any further questions you can contact us by email
or by phone
(02) 6773 5000
We apologize for the inconvenience caused. 
ITSD (Acting Team Lead)