They use their own font but if you search the internet you'll find one that's pretty darn close. As PP stated, that's a great way to get a virus. I do marketing/pr work for a living and have frequently grabbed font packs off the web, but I'll caution you to ONLY use reputable sites and pay for the font you use. If it's free, you can pretty much assume it has something not great or worse attached to it (popups, malware, viruses, etc)
Good luck and happy hunting!