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The Second Workshop on Coordination of Decentralized Finance (CoDecFin 2021) took place in conjunction with Financial Cryptography and Data Security 2021 on March 5, 2021. The CoDecFin workshop is focused on multi-disciplinary issues regarding technologies and operations of decentralized finance based on permissionless blockchain.

From an academic point of view, security and privacy protection are some of the leading research streams. The Financial Cryptography conference discusses these research challenges. On the other hand, other stakeholders than cryptographers and blockchain engineers have different interests in these characteristics of blockchain technology. For example, regulators face difficulty in tracing transactions in terms of antimoney laundering (AML) against privacy-enhancing crypto-assets. Another example is consumer protection in the case of cyberattacks on crypto-asset custodians. Blockchain business entities sometimes start their business before maturing technology, but the technology and operations are not transparent to regulators and consumers. The main problem is a lack of communication among stakeholders of the decentralized finance ecosystem. The G20 discussed the issue of insufficient communication among stakeholders in 2019. It concluded that there is an essential need for multi-stakeholder discussion among engineers, regulators, business entities, and operators based on the neutrality of academia.