https://www.cnbc.com/2018/02/16/coinbase-blames-visa-for-issues-around-duplicate-charges-cryptocurrency-purchases.html >Cryptocurrency exchange and wallet Coinbase blamed Visa for an issue that saw some users experience unauthorized money withdrawals, but the card service said it wasn't at fault. >Coinbase users can link a credit or debit card to Coinbase and buy cryptocurrency immediately. Some users had been noticing that there were duplicate charges when they executed a transaction. In some cases, this drained their bank account to zero and even caused them to be charged overdraft fees.