vulnerability of systems - Why Systems are vulnerable The...

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Why Systems are vulnerable? The threats to computerized information system can stem from technology, organizational and environmental factors. The threats can be view from two main aspect, risk to hardware and risk to application and data. Risk to hardware involves physical damage to computers, peripheral equipment and communication media. The major causes of such damage are natural disasters, blackouts and brownout and vandalism. Natural disasters that pose a risk to information systems (ISs) include fire, floods, earthquakes, tornadoes and lightning, which can destroy hardware, software or both, causing total or partial paralysis of systems or communication lines. Flood water short-circuits and burns delicate components such as microchips. Lightning and voltage surges cause tiny wires to melt and destroy circuitry. Obviously, all data and programs stored in memory chips in a computer are lost when this happens. Water from floods and the heat created when circuits are shorted may also ruin the surface of storage media such as magnetic tapes or disks, thereby destroying data.
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