According to the Office of the Data Protection Commissioner (ODPC), a hack attack against an Irish loyalty programme firm, Loyaltybuild, stole the full credit card details of at least 376,000 consumers.

Personal data of at least one million people was also stolen in the hack, according to the ODPC.

The inspection team confirmed the extent of the breach in which the full card details of over 376,000 customers were taken of which over 70,000 were Supervalu Getaway customers and over 8,000 were AXA Leisure Break customers. The details of an additional 150,000 clients were potentially compromised. The inspection team also confirmed that name, address, phone number and email address of 1.12 million clients were also taken. The initial indications are that these breaches were an external criminal act.

Loyaltybuild acknowledged the breach and is warning customers to keep an eye on their credit card statements.