Hey, you know that piece of paper they give you at the airport? It gets scanned, and then you toss it in the trash. Yeah, boarding passes! There are plenty of reasons why you might wanna hang onto that thing for your next trip. Okay, you may not be a celebrity or a billionaire CEO jetting across the world. But what if someone is tracking your movements for some sinister reason? They might be planning to burglarize your home? Or, even worse, they may want to pry into your private life! Btw, all your payment information is in the boarding pass barcode! 

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