How do fake ID makers bypass the scanning system that some bars or gas stations use on the “barcode” on the back of the card?

Question

How do fake ID makers bypass the scanning system that some bars or gas stations use on the “barcode” on the back of the card?

In: Technology

Answer 1

You need to remember that a barcode is just digital information. The barcode on an ID is just a copy of the information on the front in a machine readable format. The scanner doesn’t connect to an online service to see if the card actually exists, it just logs what the barcode says.