The HSE says it won't use a new decryption key on its computer systems until an investigation has been carried out.
The criminal gang behind the ransomware attack provided the code yesterday, which may unlock stolen data.
An assessment's being carried out on whether the key will work safely, while the government says it didn't pay a ransom for it.
Minister of State for Public Procurement and eGovernment, Ossian Smyth says there's still a risk that the data will be published.
To speak with me more on this I’m joined by Chief Security Officer of Private Cloud Company, Stryve, Paul Delahunty...