Two in three hotel websites unintentionally leak their ’ booking and personal data to third - party sites , such as analytics and marketing companies , a Symantec study of over 1,500 hotel websites across 54 countries has revealed . Information included names , credit card details , email addresses and passport numbers . Details are usually revealed when hotels send confirmation emails with a link that contains booking information , with a reference code that could be shared with over 30 service providers . The research followed Marriott International ’s recent disclosure of a significant data breach . Marriott was not included in the Symantec study .
Two in three hotel websites unintentionally leak guests’ booking and personal data to third-party sites, such as analytics and marketing companies, a Symantec study of over 1,500 hotel websites across 54 countries has revealed. Information included names, credit card details, email addresses and passport numbers. Details are usually revealed when hotels send confirmation emails with a link that contains booking information, with a reference code that could be shared with over 30 service providers. The research follows Marriott International’s recent disclosure of a significant data breach. Marriott was not included in the Symantec study.