Concerns about credit card

If you have been following the news then you know about the problems in the Southwest about a computer hacking program that, when executed, can reveal a person's credit card number to anyone. In light of this, I went to my credit card bank in Topeka and, first, paid off my balance, and, second, let them know that I will be using my credit card on my trip and where I will be using it. I gave the bank my cell phone number if they should discover any shenanigans on their end and needed to contact me.