So apparently someone decided to use my MasterCard info to make an online purchase. Wonderful. The charge happened a couple weeks ago and was for a website with (let's call it) special content. It was going to continue charging each month, but the billing company has now canceled that. Nothing turned up with a Google search using the information I was given regarding who made the charge. I am not sure how to proceed from here. I'm not sure what it means, but the card was only charged once, even though other charges could have been made. Was this done because they only could do it once, or did they just hope to fly under the radar, or is it not even a person but some kind of virus or whatever?
I thought I would cancel my card and get a new one, but now I wonder if that will solve the problem. How did they get my info to begin with, and if they did it once couldn't they do it again, regardless of whether I have a new card or not? I will run whatever virus and malware detection programs I have on my computer, to see if anything comes up. So should I get a new card and change my passwords and such on the sites I do online business at (paypal, amazon, etc.)? But again, if they got ahold of my info once, couldn't they do it again? I guess I'm just asking what the best way to go about protecting myself is.