Key Highlights

  • The Ethereum Foundation has launched a new public hub for its post-quantum security work.

  • The roadmap covers Ethereum’s execution, consensus, and data layers.

  • The Foundation says Layer 1 upgrades could be completed by 2029, while a full migration would take longer.


The Ethereum Foundation has published a new roadmap focused on protecting the network against future quantum-computing risks. The plan is laid out on a new public website, pq.ethereum.org, which brings together research, technical documentation, FAQs, and implementation plans related to post-quantum cryptography.


The Foundation says the threat is not immediate, but the work cannot be left until the last moment. A transition of this scale would take years of coordination, testing, and protocol changes across multiple parts of Ethereum.


The main concern is that a sufficiently advanced quantum computer could eventually break the public-key cryptography used to secure Ethereum accounts and validator signatures. That could create risks around stolen funds and forged signatures.


The roadmap covers three main areas. On the execution layer, the Foundation is exploring ways to support post-quantum signature verification through account abstraction and new cryptographic tools. On the consensus layer, it is studying alternatives to current validator signature schemes. On the data layer, it is looking at how future blob data and related systems could be secured under a post-quantum model.


The post-quantum plan is also tied to Ethereum’s broader strawmap, a draft long-range roadmap maintained by EF Architecture. That document frames post-quantum L1 as one of five major long-term goals and sketches seven forks through 2029 on a rough six-month cadence, while stressing that the plan is a draft rather than a fixed schedule. 


The Foundation has framed this as long-term protocol work rather than an emergency response, but the publication of a dedicated roadmap shows that post-quantum security is now being treated as a serious part of Ethereum’s future planning.