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the discussion on security comes about because the problem discussed is about messaging security (or lack of) on the pacemaker itself.... not about any bugs (or lack of) in the pacemaker software.

No layer of security is ever perfectly implemented, mathematically perfect tho the algorithms may be.... this is the key point that defence-in-depth acknowledges... and hence is the key point that obscurity addresses.

Buying time certainly does gain you a lot in this context. If someone was attempting to bypass security to get into a pacemaker in side me.... I would damn-sure prefer the apparent "lock" to be hidden rather than in plain sight! (given everything else is equal).




> I would damn-sure prefer the apparent "lock" to be hidden rather than in plain sight

I would prefer the lock be visible to me over either situation. Otherwise, how would I know how easy is it to bypass?




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