PQC refers to next-generation encryption based on complex mathematical algorithms designed to withstand decryption attempts even by quantum computers. Quantum computers, which use principles of quantum mechanics, are expected in theory to solve problems that would take conventional supercomputers thousands of years in just seconds.
The company said it has implemented PQC at points where payment data is created and transmitted. It completed deployment across its infrastructure, including its own data center and cloud environment on AWS. A key feature, it said, is full adoption on its payment page — the main interface between merchants and consumers. When users access the Toss Payments payment page through up-to-date browsers that support PQC, including Chrome, Edge, Safari and Firefox, PQC is automatically activated during communication with the server.
Toss Payments said the rollout comes about 10 years ahead of a master plan presented by South Korea’s National Intelligence Service and the Ministry of Science and ICT calling for major national infrastructure to transition to PQC by 2035. It also said it is the only company in the finance and IT industries to apply PQC across all customer-facing web services and application programming interface, or API, services.
Shin Yong-seok, the company’s chief information security officer, said advances in quantum computing pose both a major challenge and an opportunity for financial security. “Based on the heavy responsibility of being an industry leader, Toss Payments will build a ‘future-ready security’ standard so both merchants and consumers can pay with confidence,” he said.
* This article has been translated by AI.
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