Technology is redefining financial services--including the way actors make and settle payments, raise capital, extend loans, and memorialize increasingly complex relationships. At the same time, new innovations--from cryptocurrencies to marketplace lending, robo-advising, and mobile payments--are creating novel regulatory issues for anti-money laundering requirements and cybersecurity. This Nutshell provides an overview of some the key developments reshaping finance--and the rules deployed to oversee them. Chris Brummer's Fintech Nutshell has been named by BookAuthority one of the 20 Best New Fintech Books to Read in 2020!