York Region District School Board was the target of a cyber incident last month.
In a Dec. 14 news release, the school board said that on Nov. 8, information technology staff members became aware of the incident.
The board said it’s working with third party experts, including legal and technical, to analyze the extent of the incident and begin work to restore services.
"Law enforcement has also been contacted and we are co-operating fully with their investigation," the board said.
York Regional Police have confirmed the incident is being investigated, but no other information can be provided at this time.
“The board's technology team has a cyber security response plan and immediately took mitigating action to preserve and contain data and ensure critical systems were protected,” the board said.
The board stated it is also conducting a full investigation into what occurred, its effects on the network and what steps can be taken to avoid these types of incidents from reoccurring.
“We know the public rely and trust the board to maintain its data secure; all our actions have been taken to ensure the integrity of staff and student data and ensure privacy is protected,” the board added.