about the security code on back of your card
The best credit card tip I know is to copy the 3 digit code on the back of your credit card to a note pad on your phone and keep a paper copy at home.
Then use a sharp tool to scrape the number off the back of your card.
When you give your card to someone to pay they cannot take a quick picture of the front and back of your card and use it online.
Most businesses want the 3 digit code from your card to complete a sale.
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