Allied Irish Banks (AIB) and Permanent TSB in Ireland have confirmed that a number of customers have fallen victim to fraudulent transactions on their credit cards.
The confirmation follows the significant hacking of a customer database at the Irish marketing and travel business, Loyaltybuild.
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Initially, it was believed that though cyber criminals accessed credit card holders details but no attempts to obtain cash were reported.
However, the banks now say that they have unearthed evidence of possible fraud on cards and they are in contact with those customers.
In total, it is estimated that the hacking attack in mid-October exposed either the financial details or personal information of 1.1 million people to online raiders.
A criminal investigation is under way into the theft of the financial and personal details. It is estimated that the hacking attack which took place in mid-October exposed financial or personal details of nearly 1.1 million people.
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By GlobalDataLoyaltybuild runs special offers and incentive schemes for major retailers, utilities and service providers in Ireland, the UK, Scandinavia and Switzerland.
