I personally do not use any type of internet security beyond some common sense, like, "Don't make financial transactions over public WiFi like coffee shops or fast food restaurants" and " Backup your data to Google Drive, DropBox, or your PC." In the rare case that you do have any type of infection, we have the tools to make a full factory restore of our system image. The one thing I do recommend in the event that you maintain any personal information on your tablet, that you have the ability to remotely wipe or lock it, in the case where it is lost or stolen.