Quantum Security, Quantum Finance

BTQ Technologies will shield MoonPay Korea’s stablecoins from quantum attacks

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October 9, 2026 by Ivy Delaney

BTQ Technologies will partner with MoonPay Korea to shield its stablecoin infrastructure from future quantum computing threats. The collaboration will extend post-quantum security to the full stack of MoonPay Korea’s operations, encompassing stablecoin issuance through to delivery for users and merchants. This work will connect Korean won-backed stablecoins to a network serving over 35 million customers in approximately 180 countries and more than 1,500 enterprise clients. A proof of concept using BTQ’s Quantum Secure Stablecoin Network will be conducted with Korean banking institutions to test quantum-safe transaction signing and key management.

BTQ Technologies Secures MoonPay Korea’s Full-Stack Stablecoin Infrastructure

BTQ Technologies is collaborating with MoonPay Korea to embed post-quantum security directly into the infrastructure supporting Korean won-backed stablecoins, extending protection from issuance through to end-user transactions. This partnership focuses on securing the entire operational stack, encompassing issuance support, distribution, wallet access and settlement, which is critical to consumers and merchants, representing a level of integration beyond typical wallet-level security measures. The collaboration will center on a jointly developed roadmap for transitioning to post-quantum cryptography, prioritizing cryptographic inventory and a phased migration plan.

This engagement with the banking sector signifies a move beyond theoretical discussions toward practical implementation of quantum-resistant technologies within a regulated financial environment. “Stablecoin infrastructure in Korea is being built now, and security designed in from the start will last far longer than security retrofitted later,” said Olivier Roussy Newton, Chief Executive Officer of BTQ Technologies. The scope of this partnership extends beyond simply securing transactions. It aims to fortify the entire ecosystem supporting Korean won-backed stablecoins.

MoonPay Korea links Korean won-backed stablecoins to a network serving more than 1,500 enterprise clients, supporting global distribution, cross-border settlement, and wallet access. This collaboration intends to extend post-quantum security to MoonPay Korea’s stablecoin infrastructure, covering issuance support, distribution, wallets, settlement, and last-mile delivery. This comprehensive approach addresses the vulnerabilities inherent in current public-key cryptography, which is expected to be compromised by the advent of sufficiently powerful quantum computers. “MoonPay’s stablecoin capabilities span the full stack, from issuance support through settlement and distribution,” said Bugeon Lee, Head of APAC at MoonPay.

“MoonPay Korea is focused on delivering the last-mile services that allow Korean partners to put those capabilities to work. As our security partner, BTQ will help us develop a post-quantum security roadmap and evaluate how its technology can support the long-term resilience of that infrastructure.” Korea’s regulatory environment is driving this proactive approach to security, as the nation transitions from pilot programs to broader adoption of bank-grade stablecoins and cross-border settlement.

Woori Bank, a leading Korean commercial bank, is already a member of MoonPay Korea’s KRW Stablecoin Consortium, indicating a commitment to establishing a secure and reliable infrastructure. The need for robust security is particularly acute for stablecoins, which rely on cryptography for authorizing transactions and protecting keys. A compromised key could lead to the loss of assets. QSSN is designed to address these vulnerabilities by providing post-quantum protection to transaction signing, key management and settlement without disrupting existing user experiences.

Youngsuk “Jeff” Choi, Chief Strategy Officer of BTQ Technologies, emphasized the strategic importance of this moment, stating, “Korea is setting the pace for regulated, bank-grade stablecoins, and the infrastructure decisions made now will define the market for years.” BTQ’s prior work with Finger Inc. and iM Bank on a similar proof of concept, and its commercial agreement with LINE NEXT and Kaia DLT Foundation demonstrate a growing footprint in Korea’s digital asset infrastructure, MoonPay says.

“MoonPay Korea is delivering the full stack, all the way to the last mile, and it connects Korea to MoonPay’s global network.” As its security partner, BTQ can ensure that stack is quantum-safe from the start. The partnership represents a step toward building a quantum-resistant financial ecosystem, safeguarding digital assets against future threats and ensuring the long-term viability of stablecoins in a rapidly evolving technological landscape.

Stablecoin infrastructure in Korea is being built now, and security designed in from the start will last far longer than security retrofitted later.

Olivier Roussy Newton, Chief Executive Officer of BTQ Technologies
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Ivy Delaney

Ivy Delaney has been working with neural networks and machine learning since the mid-nineties, back when a couple of hidden layers and a long afternoon of training counted as ambitious. She has watched the field go from academic curiosity to the thing quietly running underneath everything, and she brings that long view to quantum computing. For Quantum Zeitgeist she covers the ground where the two fields meet. That means quantum machine learning and the variational algorithms it leans on, and it also means the less glamorous but more interesting story of classical machine learning already doing real work inside quantum machines, decoding error-correcting codes, calibrating noisy hardware and learning the error models that simulators depend on. She writes about the hardware those algorithms have to run on too, and about the post-quantum cryptography scramble that the same hardware has set off. Her stories typically start with the paper, whether that is peer-reviewed work, conference proceedings or an arXiv preprint, with the source linked so you can hold a claim up against the research it came from. She is unimpressed by benchmarks that will not say what they beat, and by demonstrations that only work in the press release.

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