> Basically, the main computer is completely isolated from the infotainment system, except for the BUS emitting these minor information.
Unless this is a one-way optical bus or similar, I'd be very skeptical of that claim.
Unless this is a one-way optical bus or similar, I'd be very skeptical of that claim.
From reading the Wikipedia article, they are indeed logically one-way (although the underlying protocol involves two-way communication). It has no security at all.
However, it seems that communication between any avionics systems and anything user-accessible goes through a Network Extension Device (NED). These are required to either be physically (not only logically) unidirectional _or_ have built-in security.
So it might be physically impermeable or it might be a buggy 10-year old firewall. Doesn't exactly inspire confidence given the subject of the article.