# zkSync Era

> zkSync Era is a public blockchain network. Confidentiality on zkSync Era: Privacy only on permissioned instances.

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 on this network
- Category: Privacy only on permissioned instances
- Tags: no native privacy, permissioned
- Canonical page: https://www.sodalabs.xyz/privacy-hub/chain-zksync

## Overview

Public zkSync Era has no confidentiality. Its ZK proofs serve scaling, and the Atlas upgrade is about throughput. The privacy option is Prividium, a licensed permissioned L2 whose data stays off the public chain while proofs settle on Ethereum, first deployed with Deutsche Bank. In other words, privacy on zkSync today means leaving the public chain for an instance you have to license.

## Sources

- [Prividium](https://docs.zksync.io/zk-stack/prividium/overview)

## Related entries

- [Arbitrum](https://www.sodalabs.xyz/privacy-hub/chain-arbitrum): Bubble live · no native privacy
- [Berachain](https://www.sodalabs.xyz/privacy-hub/chain-berachain): No privacy story
- [Bitcoin](https://www.sodalabs.xyz/privacy-hub/chain-bitcoin): Coordination-based privacy only
- [Cosmos Hub](https://www.sodalabs.xyz/privacy-hub/chain-cosmos): Privacy lives on neighbouring chains
- [Ethereum](https://www.sodalabs.xyz/privacy-hub/chain-ethereum): Bubble live · no native privacy
- [Linea](https://www.sodalabs.xyz/privacy-hub/chain-linea): No privacy live today