It's important to ensure appropriate regulation is in place as crypto use increases in the retail financial system, Federal Reserve Chair Jerome Powell said Tuesday during a conference hosted by the Banque of France.Monetary policy normalization has revealed significant structural issues in the DeFi system, he said. Specifically, there has been a lack of transparency, he said.On the positive side, from a financial stability standpoint, the slump in crypto hasn't had a broader impact on financial stability. "We need to be very careful about how crypto activities are taken within the financial perimeter," he Powell said.Developing...check back for updates.Earlier Tuesday, bitcoin (BTC-USD) jumped more than 5% to retake $20K
