Toss Payments becomes Korea's first fintech company to fully implement post-quantum cryptography.

DeepFlowTech · 2026-04-04T03:47:58+00:00

Korea's Toss Payments announces becoming the first company to fully implement post-quantum cryptography, using the ML-KEM algorithm to combine traditional encryption with quantum security to ensure payment safety and defend against future quantum computer attacks.

DeepFlowTech

2026-04-04 03:47:58

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Deep Tide TechFlow message: On April 4, according to The Asia Business Daily, Toss Payments, an electronic payment gateway subsidiary of Viva Republica (Toss) in South Korea, announced on April 3 that it has become the first company in the South Korean financial and IT industry to fully implement post-quantum cryptography. The technology is based on complex mathematical algorithms and can withstand brute-force attacks from quantum computers. Toss Payments has deployed this technology across all of its infrastructure, covering its own data centers, cloud environments, and payment terminals, and is using a hybrid key-exchange approach 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 at the same time.

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