Regulatory smackdown, DeFi on Bitcoin, and Jack Dorsey’s protocol dreams

<p>The last few days have seen significant regulatory action, from SEC charging Shopin’s CEO with fraud over a $42m ICO to a major coordinated federal action against a $722m crypto Ponzi scheme. Over in the world of decentralized finance, meanwhile, a new project aims to show DeFi isn’t just for Ethereum. Finally, Twitter is launching a Square Crypto-like skunkworks to support or create an open social media protocol. This and more on The Breakdown.</p>