This Hidden Feature Makes Credit Cards Easier, Safer to Use

Do you have a credit card? The answer almost certainly is yes, so pull it out of your wallet and scan for something that looks like the Wi-Fi symbol you see on laptops and cellphones. If you find this symbol, your credit card is contactless. That means the next time you make a purchase at a store, you may not have to insert your card into the chip reader. Instead, you can merely wave the plastic…

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