ZDNET reports that foreign government delegates who joined a high-level Shangri-La Dialogue defense summit, including defense ministers from the U.S., Australia, and Japan, are unlikely to have significantly been impacted by a data breach across eight Shangri-La hotels in September. Shangri-La hotels in Singapore, Hong Kong, Chiang Mai, and Tokyo were affected by the data breach disclosed on Sept. 30, which involved a sophisticated threat actor compromising the hotel chain's guest databases, noted Shangri-La Group Senior Vice President of Operations and Process Transformation Brian Yu. Such databases contained names, phone numbers, email addresses, membership numbers, and reservation dates, with identification numbers, birthdates, credit card numbers, and passport numbers, being encrypted by attackers. However, no personal details of the delegates have been compromised as they have not been stored in the database. "The majority of the Shangri-La hotel guests who attended the 19th Shangri-La Dialogue, especially dignitaries, registered in groups through their embassies without submitting their personal details," said Singapore's Ministry of Communications and Information.