What are the Panama Papers?

"The Panama Papers refer to the 11.5 million leaked encrypted confidential documents that were the property of Panama-based law firm Mossack Fonseca. The documents were released on April 3, 2016, by the German newspaper Süddeutsche Zeitung (SZ), dubbing them the “Panama Papers.”"
https://www.investopedia.com/terms/p/panama-papers.asp

"an anonymous source contacted the Süddeutsche Zeitung (SZ) and submitted encrypted internal documents from Mossack Fonseca, a Panamanian law firm that sells anonymous offshore companies around the world. These shell companies enable their owners to cover up their business dealings, no matter how shady."
https://panamapapers.sueddeutsche.de/articles/56febff0a1bb8d3c3495adf4/

"The Panama Papers are an unprecedented leak of 11.5m files from the database of the world’s fourth biggest offshore law firm, Mossack Fonseca. The records were obtained from an anonymous source by the German newspaper Süddeutsche Zeitung, which shared them with the International Consortium of Investigative Journalists (ICIJ). The ICIJ then shared them with a large network of international partners, including the Guardian and the BBC."
https://www.theguardian.com/news/2016/apr/03/what-you-need-to-know-about-the-panama-papers

"It all started with 11.5 million documents that were leaked from Panamanian law firm Mossack Fonseca to Süddeutsche Zeitung. Copies of contracts, bank transactions and emails showed how the firm had sold and serviced anonymous offshore companies around the world. The International Consortium of Investigative Journalists (ICIJ) coordinated a mammoth effort to analyse the data with 400 journalists from over 80 countries."
https://www.transparency.org/en/news/panama-papers-four-years-on-anonymous-companies-and-global-wealth#

"The more-than 11 million documents, which date back four decades, are allegedly connected to Panama law firm Mossack Fonseca. ICIJ reports that the firm helped establish secret shell companies and offshore accounts for global power players."
https://www.cnn.com/2016/04/04/world/panama-papers-explainer/index.html

"Two convicted Cambodian-American fraudsters were named among five shareholders, including Justice Minister Ang Vong Vathana, in a shadowy offshore company based in the British Virgin Islands in the latest trove of “Panama Papers,” which were released on Tuesday."
https://english.cambodiadaily.com/editors-choice/panama-papers-link-justice-minister-to-fraudsters-112429/

"The first people charged with crimes in the United States arising from the Panama Papers investigation will face trial in January 2020, according to new court filings.

The trial, in New York’s Southern District, will begin almost four years after the International Consortium of Investigative Journalists and more than 100 media outlets began publishing the global exposé of the shadowy world of offshore finance."
http://beverlytran.blogspot.com/2019/08/panama-papers-trial-starts-january-2020.html?m=1

"The anonymous source behind the leak of the Panama Papers has spoken for the first time, offering to help law authorities make prosecutions in return for immunity."
https://www.bbc.com/news/world-latin-america-36232142