#CryptoSecurity101 A new project called Stable is being built to create a blockchain, a kind of digital ledger for recording transactions, that will use Tether’s USDT, the biggest stablecoin, to pay for transaction fees. Bitfinex, a crypto exchange, and USDT0, a Tether-affiliated company that facilitates USDT’s operation on various blockchains, support this project. Tether’s CEO, Paolo Ardoino, is helping guide the project aimed at big financial companies, not everyday people.