Ethereum researchers drop faster blocks to race toward quantum defenses in 2027

A group of Ethereum researchers is willing to sacrifice faster block times next year to shave 12 months off the blockchain’s quantum defense timeline.

Research group Ethlabs withdrew its faster-block proposal from the planned 2027 Hegotá upgrade in a Wednesday post on Ethereum Magicians, a forum dedicated to improving the protocol, urging core developers to push other features aside and lock in post-quantum security ahead of the current 2028 target.

The schedule overhaul remains a proposal and has not been adopted into Ethereum's roadmap.

The push targets a basic vulnerability facing anyone holding ether , stablecoins or other tokens on the network. Ethereum wallets use private digital signatures known as keys to prove that their owners approved transactions. A public version of the key is readable in the blockchain record, and a sufficiently powerful quantum computer could, in theory, derive the secret key and drain the account.

While the Ethereum Foundation's quantum research team maintains that such a machine is not imminent, replacing the cryptography behind wallets, apps and validator nodes takes years. The foundation's protocol team set a December 2029 target in September.

Ethlabs says the target has since moved to 2028 and now argues developers should aim for 2027.

The researchers flagged rising risks from AI-driven automated bug hunting and the outside chance of an AI-led mathematical breakthrough that weakens current cryptographic assumptions, while acknowledging nobody knows if such a break exists.

What the researchers propose

To hit a 2027 cutoff, Ethlabs wants Hegotá built around Frame Transactions, an already planned upgrade that lets accounts choose how they approve payments, including quantum-resistant signatures, and natively swap out exposed keys.

Shipping the code will not automatically protect existing accounts. Wallet software needs to support the changes, and holders would still need to switch to quantum-resistant signing methods.

Ethlabs is also asking developers to delay the timing of FOCIL, a planned Hegotá feature that would let validators insist on including valid transactions, making it harder for block builders to censor particular users.

AI is adding to Ethlabs’ urgency. The group wants stronger defenses against automated bug hunting and cryptography built on fewer assumptions. It also considers the possibility of an AI-led mathematical breakthrough, while acknowledging nobody knows whether such a break exists.

The proposal comes as Bitcoin developers face a similar migration problem. A draft proposal would eventually restrict older signing methods, encouraging holders to switch before an attacker could exploit them.