Monad proposes wallet upgrade that could survive lost keys and quantum attacks

Monad, an Ethereum-compatible blockchain built to process transactions faster, is proposing a major change to how crypto wallets are secured, allowing users to replace lost or outdated keys without abandoning their existing address.

Monad was among 2025’s most hyped blockchain launches, after its developer raised $19 million in 2023 and another $225 million in a Paradigm-led round in 2024.

The new proposal would separate a wallet’s permanent address from the key used to control it. As of today, losing that key can permanently lock a user out, while moving to a stronger security system often means creating a new wallet and transferring everything over.

Quantum computers pose a long-term threat to crypto because sufficiently powerful machines could eventually break the digital signatures used to prove ownership of coins.

Read More: How a quantum computer can be used to actually steal your bitcoin in '9 minutes'

Bitcoin developers are exploring quantum-resistant signature schemes and debating how to protect older coins whose public keys are already exposed, while Ethereum has made post-quantum security a formal research priority across wallets, staking and smart contracts.