Definition[]
In information security, de-perimeterization (also spelled deperimeterization) is a concept/strategy used to describe protecting an organization's systems and data on multiple levels by using a mixture of encryption, inherently-secure computer protocols, inherently-secure computer systems and data-level authentication rather than the reliance of an organization on its (network) boundary/perimeter to the Internet.
Successful implementation of a de-perimeterized strategy within an organization thus implies that the perimeter, or outer security boundary, could be removed.
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