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Yonsei University confirmed on Oct. 22 that its portal service was hacked, leaking personal information of about 10,000 to 15,000 students, graduates, and staff. Yonhap reports the breach involved two unauthorized accesses on Oct. 20 and 21, exposing names, student IDs, phone numbers, emails, and IP addresses. The university has requested a police investigation. This follows a similar August hack at Sogang University that leaked 180,000 records, raising concerns about university cybersecurity.