Minister for Communications Eamon Ryan has said the Government will set up a helpline for anyone who has been approached and told that their health information is going to be published online.
Speaking in the Dáil at Leaders' Questions, Mr Ryan said the Government is also contacting social media companies urging them not to further share any information that has been put out there.
Earlier, the Health Service Executive's National Clinical Adviser for Acute Operations said there is an "enormous risk" across health services following the cyber attack last week which forced a shutdown of the HSE's IT systems.
Speaking on RTÉ's Morning Ireland, Dr Vida Hamilton said it is a "major disaster" and described it as a stressful time in hospitals. "Th