Defense in depth (glossary)

A system resilience principle that states that a system should be capable of having two or more ways to address a single vulnerability. Jackson (2016)

Source

Jackson, Scott. 2016. "Principles for Resilient Design - A Guide for Understanding and Implementation." In IRGC Resource Guide on Resilience, edited by I. Linkov. University of Lausanne, Switzerland.

Discussion

Also called layered defence

SEBoK v. 2.12, released 20 May 2025