Physical Security – Network Security

In this article we will discuss Physical Security – Network Security, will make brief discussion on Physical Security, In last article we discuss about Types of Threats – Network Attacks.

An equally important vulnerability is the physical security of devices. An attacker can deny the use of network resources if those resources can be physically compromised.

Physical security is the protection of personnel, hardware, software, networks and data from physicalactions and events that could cause serious loss or damage to an enterprise, agency or institution. This includes protection from fire, flood, natural disasters, burglary, theft, vandalism and terrorism.

The four classes of physical threats are:

  • Hardware threats – physical damage to servers, routers, switches, cabling plant, and workstations
  • Environmental threats – temperature extremes (too hot or too cold) or humidity extremes (too wet or too dry)
  • Electrical threats – voltage spikes, insufficient supply voltage (brownouts), unconditioned power (noise), and total power loss
  • Maintenance threats – poor handling of key electrical components (electrostatic discharge), lack of critical spare parts, poor cabling, and poor labeling

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