# Seismic

> Seismic: Encrypted EVM L1 (pre-mainnet). Technology: trusted execution environments (TEEs).

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: Encrypted EVM L1 (pre-mainnet)
- Technology: Trusted execution environment (TEE)
- Website: https://seismic.systems
- Tags: TEE, L1, upcoming
- Canonical page: https://www.sodalabs.xyz/privacy-hub/seismic

## Overview

Seismic raised seventeen million dollars from a16z to build an encrypted EVM where confidentiality is a language-level primitive. Shielded types such as suint256 mean a developer marks a variable private and the chain takes care of the rest, which is about as low-friction as confidential smart contracts have ever been made. Two fintech partners are already building on it. The chain runs on Intel TDX, a platform researchers have continued to probe successfully on fully patched hardware, and mainnet, once eyed for the end of 2025, has not yet been re-dated.

## About Trusted execution environment

Computation runs inside an isolated hardware enclave whose contents the host operating system cannot read, under a hardware-trust assumption. Compared side by side with the other approaches at https://www.sodalabs.xyz/taxonomy.

## Sources

- [Docs](https://docs.seismic.systems)
- [Source](https://github.com/SeismicSystems)
- [TDX research coverage](https://www.bleepingcomputer.com/news/security/teefail-attack-breaks-confidential-computing-on-intel-amd-nvidia-cpus/)

## Related entries

- [Oasis Sapphire](https://www.sodalabs.xyz/privacy-hub/oasis): Confidential EVM
- [Secret Network](https://www.sodalabs.xyz/privacy-hub/secret): Confidential L1
- [iExec](https://www.sodalabs.xyz/privacy-hub/iexec): Confidential compute network
- [Inco](https://www.sodalabs.xyz/privacy-hub/inco): Confidential token framework
- [Phala](https://www.sodalabs.xyz/privacy-hub/phala): Confidential compute network
- [Aleo](https://www.sodalabs.xyz/privacy-hub/aleo): Privacy L1