The Bank for International Settlements proposes to set compliance scores for cryptocurrencies to prevent illegal fund inflows Golden Finance reports that researchers from the Bank for International Settlements (BIS) have proposed a new anti money laundering (AML) solution aimed at preventing illegal fund inflows by setting compliance scores for cryptocurrencies. The plan advocates that "blockchain users should be assigned security ratings, and withdrawals from users with low ratings will be blocked." Based on the transfer history of cryptocurrencies, countries can set a threshold score to determine whether users can exchange cryptocurrencies for fiat currency.