G iancarlo Devasini is an Italian billionaire and the Chief Financial Officer of Tether, the company behind the world's largest and most important stablecoin, USDT. He is also believed to be a major shareholder in Bitfinex, a prominent cryptocurrency exchange that shares common leadership and ownership with Tether. He is one of the most powerful and secretive figures in the entire cryptocurrency industry.

A former plastic surgeon, Devasini moved into the world of technology and finance. As the CFO of Tether, he is the steward of the company's massive reserve assets, which are supposed to back the billions of dollars worth of USDT in circulation. The nature and composition of these reserves have been a subject of intense speculation and controversy in the financial world. Despite his central role in the crypto ecosystem, Devasini is notoriously private and rarely makes public appearances or speaks to the media.