T-Mobile after completing its recent merger with Sprint, ended 2020 by announcing its second data breach of the year. T-Mobile US, Inc., doing business as T-Mobile, is an American wireless network operator. Its largest shareholder is the German telecommunications company Deutsche Telekom with a 43% share, with Japanese conglomerate holding company SoftBank Group partially owning the company as well at a 24% share. Its headquarters are located in Bellevue, Washington, in the Seattle metropolita
