Okay, insert obligatory "One more reason not to use Windows" comment here, after all, this is Slashdork.
      Yup, Linux and OSX can get infected as well, but it's harder to do so. Especially if you approach it from the point of view that it can happen to you. If you just have to use a Windoze tool, do it via a VM of some sort, pick your fave brand of VM to do so. Some tools (native VMware VI management tools) are only available for Windoze, so I use a VM to run those tools. Other than that, there are options, even for those poor admins that are CLI challenged, for managing stuff without using Windows.
      If you just have to use Windoze because all us Linux g33ks are really l4m3rz and Windoze really is the sh1tz, then Obi Wan, use your mastery of that platform and show us that you're not just all hat and no cattle. Put in the extra time and effort to use your platform of choice without contributing to the delinquency of those less enlightened than you who think that your site is safe.

Just called their customer service folks and was told that after investigation they find the issues mentioned in the article "unsubstantiated". We'll see. I'll contact my card company and warn them, then see what happens.