On today's CoinMarketRecap with Connor Sephton, we find out why the crypto markets fell so sharply over the weekend. Plus — Warren Buffett rips into Bitcoin at Berkshire Hathaway's annual shareholder meeting. Also today, why your smartphone could be your worst enemy when it comes to keeping crypto safe… and how an investor with nerves of steel turned $16 into $435,000. You can follow us on Twitter — @ConnorSephton and @CoinMarketCap.