KT launches secure public cloud with Microsoft for South Korean enterprises

The telco firm, KT Corp, has introduced a Secure Public Cloud service in partnership with Microsoft, designed to meet South Korea’s stringent data sovereignty demands instead of relying solely on global cloud platforms.

Built on Microsoft Azure, the platform targets sectors such as finance and manufacturing, offering high-performance computing while ensuring all data remains stored and processed domestically.

A service that is based on three pillars: end-to-end data protection, enhanced enterprise control over cloud resources, and strict compliance with the residency requirements of South Korea.

Confidential computing encrypts data even during in-memory execution, while a managed hardware security module allows customers to fully own and manage encryption keys, enabling true end-to-end protection.

KT said the platform is particularly suitable for AI training, transaction-heavy applications, and operational workloads where data exposure could pose major risks.

By combining domestic governance with the flexibility and scalability of Azure, the company aims to give enterprises a reliable cloud solution without compromising performance or compliance.

The launch also strengthens KT’s broader cloud ecosystem, which includes KT Cloud and managed global cloud services like AWS.

KT plans to expand the Secure Public Cloud gradually across industries, responding to rising demand from organizations that need robust domestic data controls instead of facing the risks of cross-border data exposure.

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