In recent years, there have been several high-profile leaks of documents related to the offshore financial industry, such as the Pandora Papers released last year. Some of the data contained in the leaked documents have now been made public. In this brief, SITE researchers Jonathan Lehne and Maiting Zhuang discuss the advantages and pitfalls of using these data for economic analysis. They show that despite some caveats, there are patterns in these data that can shed light on a secretive industry.