Coinbase has updated its sign-up process for U.S. customers. The company says the aim is to make it possible for customers to invest as much as they want without limits getting in the way. The cryptocurrency exchange also said it had made it possible for users to recover their accounts even if they no longer have access to the email they used to register. Other changes are in the works in the coming months. As part of the updated sign-up process, U.S. users will need to supply their date of birth, social security number, address and explain how they fund their investments. Read more here.