The CEO of Cardano criticized a plan to protect Bitcoin from quantum attacks.

The founder of Cardano, Charles Hoskinson, said that even if the proposal BIP-361 (a plan to make Bitcoin safe against quantum computers) is used, some BTC will still be at risk. He thinks about 1.7 million coins could be affected.

The plan could protect up to 34% of all Bitcoin, but it does not include old wallets, especially those created before 2013.

Hoskinson also criticized the idea of “recovering” these coins and warned that if this problem is not solved, they could either be frozen or stolen in the future.