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From: Ray Parks (rcparkssandia.gov)
Date: Thu May 09 2002 - 14:47:35 CDT
> Rhino Bond wrote:
> >Any thoughts on this? Anyone seen a white paper on
> >such a set of rules?
> actually this reminds me of the "Defense-in-Depth" concept applied to
> network/system security, but i may be wrong ;)
> have a look at this one in the meantime :
Just remember this aphorism - Depth without Breadth is useless.
We engaged in a series of experiments within the DARPA IA program in
which we proved that Defense in Depth is an over-rated concept. Layered
defenses can actually be weaker than single defenses because
administrators/developers think that another layer is providing the defense
they are ignoring. The results of these experiments were recorded in a
paper, unfortunately I don't have a cite at this time.
Bottom line - we were able to get through layers of defense in depth
because we could attack each layer in a different way. This allowed
attacks to woogle through to the goal despite multiple layers of defense.
-- Ray Parks rcparkssandia.gov V:505-844-4024 F:505-844-9641 P:800-690-5288