# Umbra

> Umbra: Shielded wallet on Solana. Technology: garbled-circuit MPC.

Part of the Soda Labs Privacy Hub, a neutral directory of the on-chain privacy
landscape: https://www.sodalabs.xyz/privacy-hub

## Key facts

- Entry type: Privacy project
- Category: Shielded wallet on Solana
- Technology: Garbled-circuit MPC (MPC-GC)
- Website: https://www.umbra.cash
- Tags: MPC, Solana, wallet
- Canonical page: https://www.sodalabs.xyz/privacy-hub/umbra

## Overview

Umbra is a private wallet and shielded pool on Solana, public since March 2026, and the clearest evidence yet that Arcium's encrypted execution engine can carry a consumer product. Send, receive and hold with balances and amounts hidden, in an interface that behaves like an ordinary wallet. Building the first real application on a new MPC layer is a harder engineering problem than it looks. It inherits the trust assumptions of that execution layer, which is still in alpha, and it serves Solana rather than the EVM environments most institutions integrate with first.

## About Garbled-circuit MPC

Several parties jointly evaluate a function over encrypted inputs using garbled circuits and secret sharing, so no single party ever holds the plaintext. Compared side by side with the other approaches at https://www.sodalabs.xyz/taxonomy.

## Sources

- [Launch coverage](https://www.theblock.co/post/394892/umbra-opens-privacy-wallet-to-the-public-on-solana-powered-by-arciums-encrypted-execution-engine)
- [Arcium, the engine underneath](https://docs.arcium.com)

## Related entries

- [Arcium](https://www.sodalabs.xyz/privacy-hub/arcium): Confidential compute network
- [Nillion](https://www.sodalabs.xyz/privacy-hub/nillion): Blind-compute network
- [Partisia](https://www.sodalabs.xyz/privacy-hub/partisia): MPC L1
- [Renegade](https://www.sodalabs.xyz/privacy-hub/renegade): On-chain dark pool
- [Bubble](https://www.sodalabs.xyz/privacy-hub/bubble): Enterprise confidential finance
- [COTI](https://www.sodalabs.xyz/privacy-hub/coti): Confidential EVM L2 · in production