Citi Bank report claims that if adoption broadens bitcoin may threaten the credit and debit card business. Low transaction fees and reductions in fraud are the primary areas of promise for bitcoin.
A recent report published by Citi suggests that bitcoin could challenge or even supplant some traditional payment services if adoption widens in future years.
http://www.coindesk.com/citi-bitcoin-debit-credit-card-issuers/
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