The HSE says staff will be paid today despite the cyber-attack - but there may be mistakes with the amounts they receive.
It says basic pay and allowances will be paid as normal, but there may be issues with overtime and other extras.
The executive says any problems will be fixed in the coming weeks.
Staff currently aren't able to make travel and subsistence claims, as the system is down.
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Sunny intervals
High: 21°C | Low: 14°C
Sunny intervals
High: 20°C | Low: 14°C
Heavy rain shower
High: 21°C | Low: 12°C
Sunny intervals
High: 21°C | Low: 12°C
Light rain
High: 21°C | Low: 13°C
