The Japan Chamber of Commerce and Industry (JCCI) announced on November 10 that an external server used for managing online exams, including bookkeeping, was subjected to unauthorized access, potentially leading to the leak of examinee information for up to approximately 980,000 individuals (approximately 1.97 million records).
The affected individuals are those who took online exams for Bookkeeping, Retail Marketing (Certified Sales Professional), Nissho PC, Electronic Accounting Practice, Keytouch 2000, Business Keyboard, Nissho Programming, and Nissho Business English between April 1, 2022, and November 4, 2026. The potentially leaked information includes names, furigana (phonetic readings of names), gender, date of birth, pass/fail status, scores, as well as optionally registered email addresses, phone numbers, and addresses.
The unauthorized access targeted a system used by exam-administering organizations to manage reservations and results. The JCCI confirmed the unauthorized access on November 4, following a report from the management company, and implemented countermeasures on the same day. The potential for a data leak was identified on November 9, and the incident was reported to the Personal Information Protection Commission on the same day. The JCCI states that countermeasures have been completed, and online exams can now be taken as usual.
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