Financial data from the Tasmanian education department might have been accessed in a recent global cyber attack, the state government has confirmed.
Names, addresses, invoices and bank account numbers were at risk after third-party file transfer service GoAnywhere MFT was hacked, Science and Technology Minister Madeleine Ogilvie said.
The financial data set came from the Department for Education, Children and Young People.
Ms Ogilvie said there was no information as yet to confirm the data had been released onto the dark web.
"This is a precaution," she told reporters on Wednesday.
"I wanted us to get a step ahead of this so the public are reassured that we are doing everything we can."
The Australian Cyber Security Centre is continuing to investigate the incident and it remained unclear how many people were affected, Ms Ogilvie said.
She could not say whether the financial data related students or staff within the department.
Ms Ogilvie maintained the Tasmanian government was one of many customers affected by the global GoAnywhere hack.
"I would like the people of Tasmania to be vigilant, to make sure that they are confirming and checking their financial arrangements," she said.
Opposition technology spokeswoman Jen Butler said the government had been slow to act on the issue.
"This doesn't just include teachers and other staff but also our most vulnerable people - our children," she said in a statement.
"If the hackers hadn't identified themselves and their targets, Tasmanians could still be in the dark about this risk when they should have been informed at the earliest available opportunity."
Ms Butler has called on Ms Ogilvie to resign, describing her as incompetent.
"Tasmania has the worst performing cyber security protection in the country and this breach of our personal data is wholly due to the ministers' negligence," she said.
