Will a quantum blockchain be the final frontier? ByAndrew GillickPRO INVESTOR Updated: 27 August 2021 DisclosureWe sometimes use affiliate links in our content, when clicking on those we might receive a commission – at no extra cost to you. By using this website you agree to our terms and conditions and privacy policy. While attention is currently focused on the threat that Bitmain’s crypto-mining ASIC chips pose to the security and prices of cryptocurrencies – particularly ether (ETH) and bitcoin (BTC) – an even bigger threat looms not far on the horizon: quantum computers.