Sedona Partners With Fhenix to Bring FHE-Backed Confidential Finance to Arbitrum
Tel Aviv, Israel, July 16th, 2026, Chainwire
Trading-first neo-bank migrates from Seismic to Arbitrum, replacing TEE-based security with Fully Homomorphic Encryption across balances, positions and AI agent limits.
Sedona, a self-custodial trading platform and neo-bank, has announced a partnership with Fhenix to integrate Confidential FHE (CoFHE) infrastructure into its Arbitrum-based platform. The integration will replace Sedona’s existing Trusted Execution Environment (TEE)-based security model with Fully Homomorphic Encryption, ensuring that user balances, portfolio positions and AI agent spending limits remain encrypted by default. The partnership was announced today; the technical integration is ongoing.
“Sedona is exactly the kind of application Confidential FHE was built for. Trading platforms and financial applications need privacy that extends beyond transactions to balances, positions and increasingly the parameters that autonomous agents operate within. By moving from trusted hardware to cryptographic guarantees, Sedona is showing how confidential finance can become a native capability on Arbitrum rather than an optional feature. We believe this partnership is an important step toward making privacy a default expectation for onchain financial applications,” said Guy Itzhaki, CEO of Fhenix.
Sedona, founded by Tyler Maxwell, is a trading-first, self-custodial neo-bank offering spot trading, perpetuals and structured products. The platform is currently migrating from the Seismic ecosystem to Arbitrum. Upon completion of that migration, Sedona will deploy Fhenix’s CoFHE infrastructure, shifting the platform’s privacy model from hardware-based trust assumptions to cryptographic guarantees.
The distinction matters for users and developers. Existing private DeFi solutions typically rely on trusted execution environments, which require users to trust the underlying hardware, or on committee-based models, which require trust in a set of operators. Fully homomorphic encryption allows computations to be performed directly on encrypted data, removing those trust dependencies. Under the integrated model, Sedona users will have encrypted balances, private portfolio positions and AI agent spending limits that remain hidden even from the agents executing within them.
“We started with TEEs because they were the most practical way to deliver privacy, but our goal has always been to remove trust assumptions wherever possible. Fully homomorphic encryption lets us protect sensitive financial data through mathematics rather than hardware, providing a much stronger foundation for the future of self-custody. For many of our users – especially those in emerging markets who rely on stablecoins as their primary savings account and payment rail: financial privacy isn’t a luxury. It’s an expectation. Bringing FHE to Sedona means they can manage their assets, automate strategies, and use AI-powered tools without exposing the information that matters most,” said Tyler Maxwell, Founder of Sedona.
About Fhenix
Fhenix is building a full-stack privacy infrastructure powered by Fully Homomorphic Encryption (FHE). It enables encrypted smart contracts on-chain so developers can build financial applications that protect user data, strategies, and transactions, without sacrificing composability. Starting with a focus on DeFi, Fhenix plugs into Ethereum, Arbitrum and Base, making confidentiality a native primitive for trading, stablecoins, and collateral. Fhenix’s mission is simple: bring FHE everywhere, so institutions, developers, and users can transact with confidence in an open but protected financial system.
About Sedona
Sedona is a trading-first, self-custodial neo-bank designed to give users greater control over how they trade, save, and manage digital assets. Founded by Tyler Maxwell, the platform combines spot trading, perpetuals, and structured products with privacy-preserving infrastructure built for onchain finance. Sedona is currently migrating from the Seismic ecosystem to Arbitrum, where it will integrate Fhenix’s Confidential FHE (CoFHE) infrastructure to replace TEE-based security with fully homomorphic encryption. This architecture ensures that user balances, portfolio positions, and AI agent spending limits remain encrypted by default, enabling confidential, self-custodial financial services without relying on trusted hardware.