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What makes you think the projector "has access to all your memory" any more than any random card has? That's simply not true, and completely depends on the driv
by eliben 15y ago
What makes you think the projector "has access to all your memory" any more than any random card has? That's simply not true, and completely depends on the driver. Maybe the projector can get your computer to hang or crash, but it seems to me that building security feature into this isn't very hard, even without sacrificing performance.
- gst 15y agoBecause Thunderbolt is basically an extension of the PCI bus. This means that the protocol _is_designed_ to grant full memory access to external devices (in fact that's the way how the DMA data transfer in Thunderbolt works). With other protocols such as USB or DisplayPort you don't have those issues. Of course, a faulty driver could be used to compromise the system, but the protocol itself is secure.