// PowerSchoolHIGH
Approximately 16,000 personal information records from three Seoul international schools (Korea International School, Seoul Foreign School, and Yongsan International School of Seoul) were compromised in a December 2024 cyberattack on PowerSchool. Compromised data included names, dates of birth, email addresses, home addresses, phone numbers, graduation years, and health-related information. PowerSchool reportedly paid hackers for a deletion promise, but extortion emails using the stolen data surfaced in May 2025. All three schools continue using PowerSchool despite the breach; Seoul authorities conducted limited oversight relying mainly on school self-assessments rather than independent security audits.
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