South Korean exam-prep provider ST Unitas: unauthorized system access leaks member data

ST Unitas, operator of the Gongdangi exam-prep brands, announced on June 8, 2026 that some members' personal data leaked through unauthorized access to its operating system ^[1]. Email-registered members' email, encrypted password, name, birth date, gender, phone and address leaked (social-login members without passwords); the company replaced the related access keys and tightened cloud access control ^[1]. The company asks members to change their login password, beware of texts and calls of unknown origin and not respond to requests for codes or financial data ^[1].

Industries mainly affected: Education

1. Change your ST Unitas login password ^[1].
2. Beware of texts and calls of unknown origin ^[1].
3. Do not respond to requests for codes or financial data ^[1].