Decentralised Finance (DeFi) uses blockchain as the infrastructure for financial services, allowing anyone to access these applications without the barriers and inefficiencies inherent in conventional finance. Popular DeFi applications include lending (including ‘flash loans’), decentralised exchanges, derivatives, stablecoins, and portfolio management apps, with many more categories available. Decentralised applications (dApps) provide similar functionality to services in the traditional financial sector, but offer blockchain’s benefits of security, transparency, efficiency, immutability, accessibility, and composability – the ability for developers to reuse open source dApps to create new functionality.