De-perimeterisation

This is a term used in the areas of information security, IT security, network security and computer security.

De-perimeterisation is a concept/strategy used to describe protecting an organisation'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 organisation on its (network) boundary to the Internet.

Successful implementation of a de-perimeterised strategy within an organisation thus implies that the perimeter, or outer security boundary, could be removed.

Content

• 1 Origin of the term
• 2 Potential benefits for de-perimeterisation
• 3 Variations on the term
• 4 Spelling Variations
• 5 References
• 6 External links

Variations of the term have been used to describe aspects of de-perimeterisation such as;

• "You’ve already been de-perimeterised" to describe the Internet worms and viruses which are designed to by-pass the border using web and e-mail [5].
• "re-perimeterisation" to describe the interim step of moving perimeters to protection groups of computer servers or a data centre – rather than the perimeter.
• "Macro-Perimeterisation" the act of moving the security perimeter into "the cloud", see Security As A Service, examples of such security services in the cloud are exemplified by email cleaning services or proxy filtering services provided by towers in the internet.
• "micro-perimeterisation" moving the security perimeter to surround the data itself, interim steps might include moving the primeter around individual computer systems or an individual application (consisting of a cluster of computers)