Tether (USDT) is a stablecoin, that is, a cryptocurrency whose rate is pegged to the value of traditional fiat currencies, in particular the US dollar (USD). Tether's main goal is to provide price stability, making it suitable for use as a medium of exchange and store of value in the highly volatile world of cryptocurrencies. USDT is issued by Tether Limited and is one of the most popular stablecoins on the market, widely used on cryptocurrency exchanges for trading and transfers. Each unit of USDT, according to the company, is backed by an equivalent reserve in fiat currency, which should guarantee its stability and liquidity.