10 things you should never buy with a credit card

  • Virtual currency

    KAREN BLEIER/AFP/Getty Images

    Many people will tell you that buying virtual currency like Bitcoin is risky, no matter how you acquire it, but buying with a credit card adds even more risk. The world of Bitcoin is unregulated and many operators are shady; the reason you should be wary of virtual currency sellers who accept credit cards is that it's very risky for them to do so -- buyers can call the credit card company to revoke the charges while keeping the virtual currency. Be cautious whenever giving your credit card information to a third-party seller.