Couple of caveats. Many Laptops have Firewire ports that are attached via USB for cost reasons. These 1394 ports will do DV, and attached storage but are not DM

Couple of caveats. Many Laptops have Firewire ports that are attached via USB for cost reasons. These 1394 ports will do DV, and attached storage but are not DMA. Thunderbolt on Windows 8 has an option for Allow DMA by Default, or not. This option is so that you can do a bit more prioritizing of your bandwidth. Windows 8 also has a setting for "install new hardware automatically" which if you disable you can only install hardware if you are logged in and click the install button. Windows 8 will also not allow you to install a new device if you are not logged in as Admin, or you have the Annoying UAC enabled. So while Mac and some Linux systems will have this vulnerability because you don't have to be an admin to have new hardware enabled if the drivers are on the system, Windows should be safe unless you changed your rights. On a corporate network with machines where the users run in least user privilege, Windows 8, and Windows 7 users are safe.