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Important Notice on the Data Breach Incident at SITA Passenger Service System

Thai Airways has been notified of the data breach incident at one of the third-party IT service providers, SITA Passenger Service System (US) Inc. (SITA PSS), which operates passenger processing systems for global airlines. This data security incident involves certain passenger data stored in the SITA PSS which is used to support airline operations. Data transferred among Star Alliance Airlines via passenger service systems is necessary to recognize membership tier status of frequent flyer members, in order to ensure that premium customers are recognized across the Alliance and relevant benefits are provided to them during travel.

Thai Airways was initially informed on 28 February, 2021 that data breach incident was found on 24 February, 2021. Then, Thai Airways received a completed list of data from SITA on 9 March, 2021. 

Although Thai Airways does not adopt the SITA PSS, this data breach on the SITA PSS server has affected Star Alliance airline members. Please note that only necessary information has been shared between Thai Airways and Star Alliance partner airlines, and is limited to the membership number, name, and tier status. Thai Airways does not share any other personal data of Royal Orchid Plus members to SITA PSS. Thus, please rest assured that your encrypted PIN (Personal Identification Number), mileage balance of your Royal Orchid Plus account, contact information,  passport number, and birthdate are safe from this incident. There is no need for you to take any action in this matter.

If you have any concerns about this data breach incident with SITA PSS or would like to know our measures regarding data security, please feel free to contact Thai Airways' Data Protection Officer at or if you are residing in EU countries, contact our representative at For your membership account enquiries, please contact Royal Orchid Plus member service directly, here.