Intel later this year will begin selling a chip customized to mine bitcoin and other cryptocurrencies, the company said Friday. Initial customers include payment processor Block (formerly Square) and two mining companies, Argo Blockchain and Griid Infrastructure. It's a major bet for the company on a technology that could change finance and, with a cryptocurrency-related idea called NFTs, alter how we own digital assets. Cryptocurrencies and NFTs are plagued by fraud and theft problems, ...