Some servers used to have a resettable "case has been opened" flag in the BIOS - the pieces that was based on could be leveraged against the DMA attacks. Overwr

Some servers used to have a resettable "case has been opened" flag in the BIOS - the pieces that was based on could be leveraged against the DMA attacks. Overwrite certain items in memory, or maybe just power off the system, when the box is opened, and obstruct opening of the box (a lot of glue? or somesuch) to extend the time past the "recover memory" window. Yes, I realize this would still be susceptible to coercion of the humans involved, and other issues, but it could be a building block of some degree of NSA-proofing.