A while ago I managed to get my hands on a database with over 4000 cc's but they're all hashed or encrypted, I'd appreciate if anyone can tell me what kind of hash or encryption this is and I'll reward with a cc anyone willing to teach me how to do this. And btw the one in the pic has the cvc missing but its only the first few the rest all have the cvc.
https://imgur.com/2uJ4vnW
https://imgur.com/2uJ4vnW