A database with names, addresses and contact information for 446,143 people in Ireland has been compromised by hackers.
Fastway Couriers says the data breach is "distressing" and has apologised to customers.
The firm says it's notified the Data Protection Commissioner and Gardaí.
Fastway CEO Danny Hughes has apologised to clients and customers, adding that “nobody’s financial data was at risk”.
All the information is linked to deliveries that were due to take place over a 30-day period from mid-January onwards.
The Data Protection Commission has been alerted, and it is now investigating the hack.
