Case Study: KDDI Corporation achieves seamless, password-free file encryption and data leakage prevention with WinMagic SecureDoc

KDDI Corporation - Customer Case Study

KDDI Corporation, a leading Japanese telecommunications and Fortune 300 company serving millions of subscribers globally, needed to keep sensitive information on file servers secure while preserving a simple, transparent user experience. To replace a manual, password‑reliant process and prevent internal and external data leakage, KDDI engaged WinMagic and deployed SecureDoc File Encryption.

WinMagic implemented SecureDoc File Encryption with centrally managed policies and comprehensive key management, providing persistent, transparent encryption so authorized users access files without entering passwords and files copied out of protected folders remain encrypted. The WinMagic solution transformed KDDI’s workflow—enabling secure drag‑and‑drop sharing, encrypted email attachments, editable encrypted files on servers and PCs, centralized enforcement and reporting—and eliminated password overhead while reducing the risk of data leakage.

KDDI Corporation

Yoshitaro Nishimura

Chief Information Security Officer