Every time an XRP Ledger account signs a transaction, its public key becomes visible onchain, a weak spot once quantum computers mature. The XRP Ledger Foundation has now published a design for quantum-proof accounts that addresses it.

Under the proposal, owners add a quantum-resistant key to an existing account and switch off the old one, without moving funds to a new address. Users would pay no extra fee for the protection.

The design is part of a roadmap that targets full post-quantum readiness for the network by 2028.

Ripple laid out that multi-phase plan in April, together with Project Eleven, including a contingency path for migrating accounts if current cryptography is broken earlier than expected.