Researchers reportedly traced bitcoin sent as payments to Ryuk ransomware controllers and found a good portion passed through Binance.
Source: https://www.coindesk.com/1m-ryuk-ransomware-bitcoin-cashed-out-binance-exchange-report
Over $1M in Ryuk Ransomware Bitcoin Was ‘Cashed Out’ on Binance: Report
August 24, 2020
CoinDesk
