Health Minister David Anderson says one member of staff has left in the last year over inappropriate access to computer systems.
He revealed the information in response to a question for written answer from Speaker of the House of Keys Steve Rodan in Tynwald this week.
Mr Anderson said there was only one such incident over the past twelve months.
He said an investigation was launched but the person involved resigned, and there was no inappropriate information disclosure.
Member of staff at Peel Commissioners under external investigation
Chair Ray Harmer said he hopes residents 'respect the confidentiality' of the process
Treasury minister welcomes news of bus deal
Drivers agreed 'improved pay position' with DOI following strikes
Yellow weather warning to come into force this morning
Coastal overtopping expected either side of high tide
Heysham sailing delayed due to late Manxman arrival
Steam Packet says 9am service will run with slight delay
