Calls for a rollback of the Bitcoin blockchain have intensified amid concerns that North Korea is using the cryptocurrency to facilitate cybercrime. Various voices within the cryptocurrency community are advocating for measures to address the alleged funneling of hacked proceeds through Bitcoin. One user suggested that if Bitcoin does not rollback, North Korea should face prosecution for violations related to global terrorism. Another emphasized the need for a serious discussion on this issue, pointing out that North Korea is converting stolen Ethereum (ETH) into Bitcoin (BTC). There are also proposals for a hard fork of the Bitcoin chain to create a separate 'NK-BTC' to address these concerns, citing previous instances in the cryptocurrency space where similar actions were taken.