About
KT Corporation, formerly Korea Telecom, is a South Korean telecommunications company founded in 1981 and headquartered in Seongnam, South Korea. KT conducts quantum communications research, deploying quantum key distribution (QKD) networks and quantum-safe security for telecommunications infrastructure. It has demonstrated quantum cryptography implementations and quantum network trials in South Korea, and explores quantum networking for 5G security and future telecommunications infrastructure. The company collaborates with Korean quantum technology companies and research institutions on quantum communications commercialization. In June 2025, KT partnered with the Israeli startup HEQA Security to deploy QKD using Sceptre Link and Duo systems in carrier-grade Korean telecom networks, demonstrated at Quantum Korea 2025. KT serves Korean telecommunications markets, enterprise customers, and government agencies that need quantum-safe communications, and contributes to South Korea's quantum technology strategy by protecting telecommunications networks against quantum computing threats.
Quantum Specifications
| Quantum Focus | hardware |