Nearly every day, companies such as Crypto.com, Blockfi, Voyager, Nexo, Gemini etc. are offering savings interest rates often as high as 12% on crypto assets. In a world where average savings account yields 0.05% and is only going to zero over time, this is becoming a key lever for crypto companies to attract millions of users chasing yield. What is less understood in this massive influx of customers and assets, how are these yields are being generated and how sustainable & risky these might be.