#Mastercard #YahooFinance #crypto Yahoo Finance reporter David Hollerith joins the Live show to break down Mastercard’s new tool for fending off crypto fraud. Don’t Miss: Valley of Hype: The Culture That Built Elizabeth Holmes WATCH HERE: https://youtu.be/Sb179GLPNYE Subscribe to Yahoo Finance: https://yhoo.it/2fGu5Bb About Yahoo Finance: At Yahoo Finance, you get free stock quotes, up-to-date news, portfolio management resources, international market data, social interaction and mortgage rates that help you manage your financial life.