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Korean Air (대한항공) customer data has been leaked, with the airline attributing the breach to hacking of a partner company, according to Korean economic daily 한국경제. The outlet reports that reservation numbers and other personal information were exposed, and that Korean Air and its affiliate Asiana Airlines were both affected through a system operator. Separately, Yonhap and the Korea Times report that about 10,000 Yonsei University students and graduates had personal data leaked in a hack of the university's portal, announced on October 22. Korean media are covering these incidents as part of a broader pattern of data breaches, though specific figures for the airline leak have not been detailed in the supplied reports.