DiD & DoD 1
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Harvard University *
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Information Systems
Date
Nov 24, 2024
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docx
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Uploaded by ColonelEnergy6151
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Discussion; Defense in Depth and Depth in Defense
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Difference Between DiD and DoD
Defense in Depth (DiD) is a cyber-security technique that combines multiple levels of
protection to protect highly sensitive data and information. Even if one line of defense against an
assault is breached, another will replace it (
Rahman et al., 2020)
. This multilayered approach
enhances the overall security of the system while simultaneously addressing a wide variety of
potential entry points. Defense in Depth, sometimes known as the "castle approach" is a security
principle based on the premise that a structure's defenses are most effective when constructed in
multiple layers. These security technologies and procedures have the potential to form the
foundation of an effective "defense-in-depth" strategy. Firewalls are policies or
hardware/software appliances that use access and rules to block network traffic. Combinations of
IP address, media access control address, and port number are examples of items that can be
managed by rules. While, Depth in Defense (DoD) strategy places more of an emphasis on
maximizing the effectiveness of the protective levels that are already in place as opposed to
adding new layers of defense. If one takes this approach, there is an assumption that a single,
strong layer can thwart any and all threats. Therefore, DoD focus the strength of the entire
system on a single layer. Personally, Defense in Depth is more effective as it ensures the entire
system is efficient. Hence, failure in one system can be compensated by another system rather
than facing destruction because the strongest layer that offered security is compromised as seen
in DoD.
Reply
I agree with the points articulated in your discussion. You have brought out the concept of
both the DoD and DiD system effectively, citing examples. However, I am of the opinion that
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both the systems can be effective under different grounds considering the purpose intended. For
example, one can opt for DoD because they are easy to manage and maintain compared to DOD.
The discussion has been engineered towards effective understanding of the difference
between DiD and DoD, a concept that has been effectively discussed. I would like to add an
advantage of DiD, as that was also my choice of effective system. DiD provides the way for the
use of a vast array of technologies and solutions, hence boosting the agility with which to face
ever-changing security concerns.
Reference
Rahman, M. T., Rahman, M. S., Wang, H., Tajik, S., Khalil, W., Farahmandi, F., ... &
Tehranipoor, M. (2020). Defense-in-depth: A recipe for logic locking to
prevail.
Integration
,
72
, 39-57.
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