This paper aims to address questions by Fund members on how to respond to the rise of crypto assets and the associated risks. To frame the discussion, the paper defines and classifies crypto assets based on their underlying features and describes their purported benefits and potential risks. The paper presents a policy framework for crypto assets that aims to achieve key policy objectives such as macroeconomic stability, financial stability, consumer protection, and market and financial integrity. The framework outlines key elements that are necessary to ensure that these objectives are met. However, such a framework will not fix any underlying crypto design flaws (for instance, the lack of a credible nominal anchor, payments finality, or scalability).