Bitcoin developer Cory Fields has proposed an idea: future quantum attackers would have to put up Bitcoin as collateral before they could target vulnerable old wallets.

According to Decrypt, the mechanism is designed to give wallet holders who are prepared time to recover their assets, while potentially imposing costly penalties on attackers.

· The idea is currently a proposal addressing the quantum threat; the report does not say whether it has been adopted or entered the implementation process.
· The report describes only the general direction of the mechanism and does not provide specific parameters such as the collateral amount or triggering conditions.

If a tool for migrating funds from old wallets became available, would you prioritize moving coins that have been untouched for a long time?