When my grandpa called to say he received a new credit card, I expected questions about interest rates or rewards. Instead, he was fixated on a tiny green dot sticker on the card. He feared it was a scam—maybe a signal for fraud or identity theft. After all, it’s not every day you get a credit card with an unexplained sticker. Curious, I decided to dig deeper. Was it a new security feature? A marketing gimmick? Or was Grandpa right to worry? What I discovered revealed surprising insights into how credit card companies protect their customers. The Arrival of the...
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