PANews reported on December 17th that on-chain analyst Willy Woo, citing Glassnode data, pointed out that the proportion of Bitcoin transactions using the Taproot output type has significantly decreased from a high of 42% in 2024 to approximately 20% currently. Woo stated that this is the first time he has seen the latest output format "lose adoption" among users, suspecting the main reason might be that Taproot poses a higher risk of exposure to quantum computing, while older formats like SegWit and Legacy are less susceptible to quantum attacks.

Last month, Willy Woo stated that Bitcoin needs to guard against the threat of quantum computing and suggested migrating to a SegWit address for protection .