Cork District Court is due to hear four motions later this week relating to compensation claims by victims of the HSE cyberattack.
The applications will be entered by Cork-based O'Dowd Solicitors, which represents around 100 people who had their data stolen in the hacking incident.
The motions, which are due to be heard on Friday, will seek a delivery of a defence from the HSE relating to four of the claimants.
A spokesperson for O'Dowd Solicitors said no defences have been received from the HSE to any of the claims despite repeated requests and reminders.
In December, the HSE started offering compensation of €750 to each of the approximately 620 people who are taking legal action over the cyberattack.
They are also being offered €650 towards their legal costs.
The District Court can award compensation of up to €15,000.
On 14 May 2021, a major ransomware attack on the HSE caused widespread disruption and saw information held on computer systems illegally accessed and copied.
An investigation into the breach found that the HSE was operating on a frail IT system and did not have proper cyber expertise or resources.
The HSE said it has written to all of the people affected by the cyberattack and that the final number contacted was 90,936 individuals.
Asked about the upcoming court hearing, the HSE said today that legal matters between it and affected individuals are confidential.
"The HSE continues to work closely with the State Claims Agency in relation to this matter and is engaging with legal representatives accordingly," a spokesperson said.
The HSE added that since the cyberattack it has invested significantly in its cyber defence capabilities.
