Ti Ying Nguyen, founder of FiveStack, discusses building secure custody and wallet infrastructure on Stellar. His MPC-based platform lets fintech companies, businesses, and individuals deploy self-custodial payment systems for cross-border payments and remittances without sacrificing security to centralized providers. From his DeFi background to now solving core web3 security problems, his journey illustrates the shift toward decentralized infrastructure.
Ti Ying Nguyen, a technical founder with over a decade of software experience, discusses FiveStack, a custody and wallet infrastructure platform for Stellar. His journey spans DeFi, tokenization, and now security infrastructure. FiveStack solves a core web3 problem: most developers cut corners on security, leading to repeated hacks. The platform uses multi-party computation (MPC) to split private keys across devices, securing transactions without requiring deep cryptography knowledge. Unlike centralized hosted wallets, FiveStack lets companies deploy the entire platform on their own infrastructure, retaining full control of keys and assets. It positions decentralization as the answer to custodial risk. Engaged with Stellar through Rising (Vietnam chapter) and an InstaRewards grantee, FiveStack targets emerging markets with cross-border payments and remittance solutions using stablecoins.
