WH Smith PLC (LSE:SMWH) has suspended orders at its Funky Pigeon subsidiary to investigate how much of customers' personal data was stolen by hackers in an incident in the run-up to Easter.
The online greetings card and gift retailer's systems were affected by "a cyber security incident" on Thursday 14 April, it said.
FTSE 250-listed WH Smith said it is investigating the detail of the incident with external IT specialists.
While it said no customer payment data was at risk, as it is processed securely via accredited third-parties, it is investigating "the extent to which any personal data, specifically names, addresses, e-mail addresses and personalised card and gift designs has been accessed".
WH Smith said it did not expect the incident to have a material impact on its financial position.