The head of the HSE is describing the ransomware attack as 'unfair, unjust and incomprehensible'.
Paul Reid says he's 'gutted and angry' after what the country's been through with Covid-19.
The executive says the ransomware attack has had an 'disabling effect' on the health service, and will take several weeks to resolve.
It's led to widespread cancellations - but Liam Woods, the HSE's director of acute operations, says it won't affect staff getting paid.
"All staff payments to date have been made - Thursday is the next pay date with 35,000 staff due to be paid.
"There are contingency plans in place to make sure those payments will be made - it's not easy to do that but those arrangements have been put in place.
"Our message at the moment is that we will be making payments, payments have been made to date and we will continue to do so."