What is the definition of “defense in depth” when referring to cybersecurity?
What is the definition of “defense in depth” when referring to cybersecurity?
Defense in depth refers to applying multiple countermeasures in a layered or stepwise manner. This strategy involves implementing various security measures at different points within a system or network to protect against threats. By doing so, it ensures that if one layer of defense is compromised, other layers will still provide security, thereby delaying or preventing an attack.
Defense-in-Depth is the provisioning of multiple security protections, especially in layers, with the intent to delay, if not prevent an attack. Defense in depth implies layers of security and detection, even on single systems, and provides the following features: attackers are faced with breaking through or bypassing each layer without being detected, a flaw in one layer can be mitigated by capabilities in other layers, system security becomes a set of layers within the overall network security.