Mossack Fonseca is not a household name, but the Panamanian law firm has long been well known to the global financial and political elite, and thanks to a massive 2.6 terabyte leak of its confidential papers to the International Consortium of Investigative Journalists it's about to become much better known. A huge team of hundreds of journalists is pouring over the documents they are calling the Panama Papers.
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The firm's operations are diverse and international in scope, but they originate in a single specialty — helping foreigners set up Panamanian shell companies to hold financial assets while obscuring the identities of their real owners. Since its founding in 1977, it's expanded its interests outside of Panama to include over 40 offices worldwide, helping a global client base to work with shell companies not just in Panama but also the Bahamas, the British Virgin Islands, and other notorious tax havens around the world.
The documents provide details on some shocking acts of corruption in Russia, hint at scandalous goings-on in a range of developing nations, and may prompt a political crisis in Iceland.