Short for
Internal Nonhostile Structured, it is a threat defined by
Symantec Corporation to mean an individual within an organization who has physical access to
network components. This individual may not motivated to disrupt mission operations but can do so by making common mistakes. Individuals executing INS threats are usually skilled and have tools to assist them in performing
security-related functions.
Contrast with INU (Internal Nonhostile Unstructured).