Just found out the other day that my credit card number was compromised. the credit card company's fraud department left me a message and when I called them back they canceled my current card and is sending me a new one with a different number. I had not used it in a couple of months and there are no new charges on it. I have a pretty large limit on the card and was thinking maybe I should reduce the max limit on it. I have not been carrying a balance and pay it off in full whenever I use it. how much does lowering your limit lower your credit score ? hate to see somebody get this new number and run up a large bill under my name. if I needed to make a sizable purchase with a credit card I could use that my wife and I have.