Previously used credit cards

Does C2 keep a record of credit cards I used in the past? A while ago, when trying to get my CC accepted, I tried a few CCs from family and such, and then switched back to my own. Do I have to tell them to get a new one too, or just mine?


Unfortunately, in order to be cautious, you should assume that anything that was ever in the C2 database was compromised. I am sorry.