New IT security risks – understanding perimeter IT

Perimeter IT security is often misunderstood. Misconceptions about IT security controls increase the liklihood of a successful attack and can lead to serious problems. Many organisations believe that perimeter IT security will protect your assets against all forms of malware threats but this is no longer the case.

The term ‘Perimeter IT Security’ was reserved for well-defined physical security boundaries. Following the introduction of remote systems into the network, the physical security became insufficient – additional access controls were required and multi-user authentication was essential. As these systems became more powerful and diverse it became clear that any sort of computing device can become the perimeter – many of which are mobile (all computers and IP-enabled devices). Today’s IT environment demands a more complex security architecture. Therefore, it’s important to understand your network perimeter, looking at it as a huge target area. The larger the area, the more difficult it becomes to protect.

Several modern-day IT trends are causing organisations’ network areas to increase and introducing new security risks:

  • Mobile devices
  • Cloud computing
  • Virtualisation
  • Social media

All devices that exchange, route and terminate data that are connected to your organisation’s network are a risk to the sensitive data within. It’s important to create provisions and policies that prevent and monitor unauthorised access, misuse, modification, or denial of the network. Successful management of a security strategy will protect an organisation’s assets, minimise frustration, reduce system downtime and increase productivity.

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