Abstract
Despite the massive amount of data and sophisticated computing capacity, Big Tech has evolved into the new data sovereigns that governments must accept in the data era. Data mining and application determine the true value of data; in this regard, Big Tech is tough to replace. The so-called "Fourth Industrial Revolution" is reshaping the emerging global order, and at its core are Big Tech firms. They not only express their concerns and spread their values and ideologies but also make their strong presence felt in international affairs, as Big Tech appears to be transforming into a new type of Leviathan. With access to significant amounts of data, the rise of Big Tech poses a challenge to sovereignty's exclusivity and superiority, assuming the position of de facto data sovereign. The article holds that the Big Tech firms, by virtue of their technical advantages, have not only deconstructed the traditional concept of sovereignty, but also formed a complex symbiotic relationship.