Re: quick OT thought

[Valdis.Kletnieks () vt edu]

On Thu, 17 Apr 2008 12:39:01 CDT, RandallMan said:

> Have been refreshing myself on CEH and CISSP studies. Looking over the OSI
> model I noticed that all layers have been hacked! Perhaps its time for
> another layer:
> THE SECURE LAYER-LAYER 8. Perhaps this would fit true with a "layered"
> approach to security.

On the other hand, implementing security at Layer 8 almost guarantees that it's
a "bolt on after the fact".  Also, "defense in depth" (which is what you
probably *mean* by "layered" - multiple security layers) suggests that there
should be components at all 7 layers.  Everything from "Do it via copper rather
than wireless" (a layer 1 issue) to "Deploy switches/configs that are resistant
to MAC address spoofing" through crypto and other stuff at the higher layers...

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