Southampton-based Cunard was forced to shut its online booking system after personal details of 1,200 passengers were emailed out to people who are registered with the company.
It is not known how many people were sent the information but it meant names, addresses and booking details were mailed out in error. The issue earlier has just been revealed. Cunard spokeswoman Jackie Chase confirmed the mishap.
Cunard can confirm that an e-mail was sent in error to some guests containing details relating to other guests' bookings. We took swift action to close down the check-in system, Voyage Personalizer, until we are able to re-issue new secure log-in details to all affected guests. We are very sorry if this error has caused our guests any concern and we would like to reassure them that the issue has been dealt with and we are in the process of contacting relevant guests with new, secure log-in."