[Toss Payments Becomes South Korea's First Fintech Company to Fully Implement Post-Quantum Cryptography] Deep Tide TechFlow reports on April 4th, according to The Asia Business Daily, that Toss Payments, a subsidiary of South Korea's Viva Republica (Toss) specializing in electronic payment gateways, announced on April 3rd that it has become the first company in South Korea's financial and IT sectors to fully implement post-quantum cryptography. This technology, based on complex mathematical algorithms, can resist brute-force attacks from quantum computers. Toss Payments has deployed this technology across its entire infrastructure, including its own data centers, cloud environments, and payment gateways. It utilizes a hybrid key exchange method based on the U.S. NIST standard algorithm "ML-KEM," combining traditional elliptic curve encryption with post-quantum algorithms to address both current and future security threats.