A ransomware group is threatening to publish a huge cache of stolen data following a cyber attack on a Scottish health board.

NHS Dumfries and Galloway warned earlier this month that hackers could have acquired “a significant quantity” of patient and staff information.

A group calling itself INC Ransom has now said it will make public three terabytes of data unless its demands are met.

The cyber criminals have published what they’ve called a “proof pack,” including confidential information on a small number of patients.