# The First Encrypted Mempool is Coming to PBS on Ethereum **URL:** \ **Category:** Announcements\ **Created:** [December 2, 2025, 3:01pm UTC](https://shutternetwork.discourse.group/t/the-first-encrypted-mempool-is-coming-to-pbs-on-ethereum/773 "2025-12-02T15:01:30Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![AnthonyCaravello](https://avatars.discourse-cdn.com/v4/letter/a/e9a140/32.png) [@AnthonyCaravello](https://shutternetwork.discourse.group/u/AnthonyCaravello)\ **Post date:** [December 2, 2025, 3:01pm UTC](https://shutternetwork.discourse.group/t/the-first-encrypted-mempool-is-coming-to-pbs-on-ethereum/773/1 "2025-12-02T15:01:30Z")
![The First Encrypted Mempool is Coming to PBS on Ethereum](https://europe1.discourse-cdn.com/flex017/uploads/shutterprotodao/original/1X/06edae7891b0f8c7d6e8d5892e8e54cdb383a555.png) We’re excited to announce that Shutter and [Primev](https://www.primev.xyz/?ref=blog.shutter.network) are partnering to bring the first threshold encrypted mempool to Ethereum’s out-of-protocol transaction supply chain, PBS (Proposer-Builder Separation). This integration targets the long standing issue of front running, sandwich attacks, and real-time censorship across the PBS pathway, which processes the vast majority of Ethereum transactions today. This is a big step forward in tackling malicious MEV & real-time censorship on Ethereum, and incredible progress towards our mission of encrypting Ethereum’s mempool at the protocol-level. 👏 Join us in celebrating and sharing! Read announcement: [The First Encrypted Mempool is Coming to PBS on Ethereum](https://blog.shutter.network/the-first-encrypted-mempool-is-coming-to-pbs-on-ethereum/) See Ethresearch post: [Threshold Encrypted Mempools with mev-commit Preconfirmations - Cryptography - Ethereum Research](https://ethresear.ch/t/threshold-encrypted-mempools-with-mev-commit-preconfirmations/23588)