Medication management platform MediMap remains offline across New Zealand after the company discovered some resident records had been “incorrectly modified.”

In a statement on its website, MediMap said its team was “actively engaged in assessing the scope of the data impacted and working to restore data integrity as a priority.”

Meanwhile, MediMap director Geoffrey Sayer confirmed that on Sunday, the company identified unauthorised activity within its system that resulted in “some patients’ demographic records being incorrectly modified within the MediMap platform.”

“As soon as we became aware of the issue, we engaged specialist external cyber experts and placed the platform into maintenance mode as a precautionary measure to protect patient safety. Our focus is on helping facilities to provide continuation of care, and then on remediation and safe restoration,” Dr Sayer said.

“Our preliminary investigation indicates that the incident has affected certain demographic information, such as resident name, date of birth, assigned prescriber, location of care and resident status.”

Health NZ acting chief information technology officer, digital services Darren Douglass told Pulse+IT Health NZ was “aware that MediMap, a privately owned medication management platform, is currently experiencing an IT issue.”

Mr Douglass confirmed Health NZ was in contact with MediMap, “to understand the impact and scope of the issue.” 

MediMap is a digital medication platform that allows aged care staff to manage residents’ medication across New Zealand and Australia. It is also used by prescribers and in pharmacy settings.

The platform would remain in maintenance mode (offline) while the investigation continued, with its system status page currently showing “NZ Unavailable” while Australia remained “OK”.

The company advised users to follow their business continuity plan while its electronic medication charts were unavailable.

A separate notice advised users that while the system was unavailable in New Zealand, its MMGO and MediMap Mobile features could be used in airplane mode if they had not been synced since 1:30pm Sunday 22 February 2026.

Dr Sayer said customers had reverted to their standard alternative manual processes to ensure patients continue to receive the required levels of care they should expect.

He confirmed that Health NZ was in contact with MediMap to provide support, while the company had also notified the Office of the Privacy Commissioner and NZ Police.

“We will continue to engage with relevant authorities as appropriate. We are continuing to investigate the impact on patient data while implementing a safe restoration pathway. We are committed to keeping our all our customers and stakeholders informed as our investigation progresses and will continue to provide updates via our website,” Dr Sayer said.

“We understand our platform is critical to aged care and healthcare across New Zealand, and we sincerely apologise for the disruption and concern this situation has caused.”

This article has been updated to include comment from MediMap director Geoffrey Sayer and will be further updated as information comes to hand.