Medical and personal information about Irish patients is being shared online, according to media reports.
The Financial Times claims it has seen screenshots and files on the internet and dark web, following the cyberattack by hackers on the HSE.
The records reportedly include internal health files, minutes of meetings, equipment purchase details and correspondence with patients.
Minister for Communications Eamon Ryan told RTÉ's Morning Ireland that he could not confirm the FT report but that it appeared “credible”.
The Government has rejected ransom demands from the crime gang responsible and has focused on restoring all medical services as quickly as possible.
But there are concerns that if ransom demands are not met, personal data belonging to thousands of patients could be sold online.
On Tuesday, Minister for Justice Heather Humphreys said she was “not aware” of personal data linked to the cyberattack being published online.
Asked about the files seen by the FT, gardaí said: “An Garda Síochána does not comment on unverified content on social media or provide specific commentary on any ongoing criminal investigation.”
The HSE has been asked for comment.
Rebuilding network
The development comes as the HSE said the restoration of computer systems in the health service will take “many weeks”.
While some IT systems in voluntary hospitals could return this week, it will take “several weeks” before systems in other, HSE-run hospitals return, it said.
The complete rebuilding of its computer network could take several months, sources told The Irish Times.
With major disruption set to continue, the HSE said many emergency departments were very busy and patients requiring non-urgent care could expect significant delays. Registration of births and deaths has also been hit, as details cannot be submitted by email.
Hospitals and other services have been asked to plan for operating essential services “within contingency arrangements” for the next two weeks, the HSE said in its latest update.
