2026 Yegaram Savings Bank — hacker access; ~50,024 customer records (RRN/accounts)
Data compromised
Per bank notices and PIPC filing coverage: initially name/DOB/contact (~40k estimated); updated/filing figures ~50,024 records including resident registration numbers, account numbers, addresses, workplace details, and other fields. Exact unique-person census still under investigation per press.
Technical writeup
Verified Yegaram Savings Bank customer notice (~2 Oct 2026) acknowledging 30 Sep hacker access and personal-data leak. Press (Khan, Hankyung) initially ~40k name/DOB/contact; later PIPC filing / updated notice coverage cites ~50,024 records including RRNs, account numbers, addresses (AP News Korea; Yonhap FSS on-site inspection 13 Oct). Part of Korean finance wave where FSI confirmed ARTEX AI tooling (human-directed). companyConfirmed true; recordsAffected 50024.
Root cause
Unauthorized hacker access to customer personal-information server (discovered 30 Sep 2026); part of wider late-Sep Korean finance intrusion wave; sector probe cites ARTEX AI pentest tool used by human operators