Cyber Security Forum - View Single Post - Cards not working with some new POS systems.

am12

I have encountered some new systems such as the square pos registers and they fail to read the tracks of the card. Both t1 and t2 are present and work with perfect with other ones. What causes this issue?

am12 Join Date: Aug 2016 Posts: 1	Cards not working with some new POS systems. I have encountered some new systems such as the square pos registers and they fail to read the tracks of the card. Both t1 and t2 are present and work with perfect with other ones. What causes this issue?