Excited to share our submission for the Private By Design Buildathon by @akindo_io Meet Umbra Finance: A Fully Homomorphic Encryption (FHE) Dark Pool built on Uniswap v4. We’re bringing institutional-grade privacy and MEV protection strictly to the DeFi execution layer. @fhenix
No one sees your thresholds. No one front-runs your rebalance. No one models your position. DeFi was supposed to remove middlemen not replace them with bots reading your every move.
Privacy isn't a feature. It's the fix.
Your LP range is public. Your rebalancing threshold is public. Your slippage tolerance is public. Every parameter you set on-chain is a signal for someone else's profit.We're building FHE-powered hooks on Uniswap v4 that encrypt your strategy parameters inside the smart contract.
Every time you LP or swap, you’re leaking your strategy to the world. MEV bots and front-runners use your public parameters (slippage, thresholds, allocations) to extract value from your trades. In today’s DeFi, transparency is a double-edged sword. Privacy is very important.
@beampaywallet It's not just sandwiches. Every rebalancing threshold, every LP range you set it's all public data for sophisticated actors to model and exploit. We're encrypting strategy parameters at the smart contract level using FHE so your DeFi positions stay truly confidential.
@zerokprotocol Exactly. That's why we're building with FHE (Fully Homomorphic Encryption) directly at the hook level on Uniswap v4. Your LP parameters and swap logic stay encrypted on-chain not just private txs, but private strategy.
Just us at our audit with @AlmanaxAI, reviewing our smart contract and identifying vulnerabilities and gaps to fix.
Glad to have you with us. @AtriumAcademy@fhenix.
What does AI-powered security actually catch in onchain code?
We’re going live with @AlmanaxAI to review a real UHI alumni hook repo and walk through how vulnerabilities get detected, triaged, and fixed in practice.
🗓️ Wed Feb 4 · 12:00pm ET
RSVP ↓
Trade deltas are calculated through homomorphic calculations to ensure privacy. Creating your onchain strategies exposes your Alpha to the world also expose your Alpha to MEV bot, front-running attack and copy-cat trading.
From Confidential Rebalance Hook to Umbra. We fix DEFI confidentiality, giving privacy needed to portfolio rebalance from encrypting target allocations, trade sequences, and execution timing. This is a turning point for every DEFI users. Privacy Friday.
Blockchain transparency is costing large portfolios annually lost via copycat trading and MEV extraction.
Introducing the Umbra Finance. The first native Uniswap v4 hook using FHE to calculate trades on encrypted data.
We stopped the bleeding. Rebalance privately.
With Umbra Finance imagine rebalancing your portfolio in total "Dark Mode."
No revealed positions. No leaked timing. No front-running your strategy at your sight.
The Umbra Finance computes trade deltas on encrypted data, keeping your institutional moves private.
Privacy shouldn’t mean starting from scratch. You start with us.
Building with Uniswap v4, we’ve ensured that institutional grade privacy is a "plug-and-play" experience.
We have developed world’s deepest liquidity + the industry’s most advanced FHE privacy.
What Confidential Rebalance Hook?
Let take it down the story line..
🧵 Institutional DeFi has a transparency problem.
Every rebalancing trade reveals your strategy to the entire blockchain. Competitors copy your moves. MEV bots front-run your trades.
The data is clear, predictable execution, transparent strategies, and public intents are no longer minor inefficiencies, they’re structural weaknesses costing DeFi billions yearly.