Instructions
Post 1 thread of at least 300 words. Also, reply to the thread below in of at least 150 words.
Thread Topic
Research and develop a thread that describes the concept of defense in depth. Your thread must include: an introduction statement/paragraph, body paragraph(s), and a conclusion statement/paragraph. Additionally, you are required to comment on at least 1 other student’s thread
Reply
Defense in Depth or (DiD) in cybersecurity refers to a series of defensive methods layered to protect data and information in case of security control fails or other vulnerabilities. DiD origins are from a military strategy which delays the progress of an attacks rather than defeating the enemy with one strong line of defense. In other words, if one method fails, another steps in to combat an attack. This multi-layered tactic with its redundancies increases security and focusses on other attack routes. A opposite principle to defense in depth is simplicity-in-security which states too many security measures will cause complications or holes that attackers can exploit.
Defense in depth security design is based on controls used to protect the physical and administrative properties of a network. A layered security can be applied to all IT systems. A desktop on a network or the network of bank cash dispensers all qualify for defense in depth. An organization that is relying on a single layer of security will find that hackers will find their vulnerabilities very quickly. Using multiple defenses such as malware scanners, firewalls, and data encryption software will close attack routes making it more difficult for a hacker to gain access to your network.
Security guards, attack dogs, barbed wire fences, semi-automatic weapons and cameras cannot protect you against hackers gaining access to private information on a network. A hacker with physical access to your infrastructure can see your data you were trying to hide. Defense in depth eliminates blind spots. Just like a home security system the more sensors you have the safer your home will be. The theory behind defense in depth shares the same principles, the more sensors you have that monitor, detect, and eliminate would be disruptions or data breaches the least likely a cybercriminal will try to invade. A multi-line of defense or defense in depth is one way to defend against enemies on all fronts.