Japan’s FSA asked crypto exchanges to delay certain withdrawals as authorities respond to rising scams.Exchanges should pre-register withdrawal addresses and impose waiting periods before newly added destinations become usable.Japan recorded 18,067 fraud cases through May, with losses reaching 151.47 billion yen.The FSA wants stronger monitoring, phishing-resistant authentication, personalized limits and faster freezing of suspicious accounts.No uniform withdrawal period was mandated, leaving implementation details to individual exchanges and risk profiles.