[jannic]

"Connect the attacker machine (host) and the victim (target) with a FireWire cable"

What keeps the target from starting an inception attack on the host?

[lmm]

Any of the things in the "Attack mitigation" section.

[jannic]

Not loading the firewire driver is not an option, as the attack needs the driver.

I guess loading the driver with DMA disabled would be a good option, as I don't think the attack needs DMA on the host side. Not sure, though, after skimming over the documentation.