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A disaster is an unexpected natural or man-made catastrophe of substantial extent causing significant property damage or destruction, loss of life or sometimes permanent changes to the natural environment. Disasters may also be unforeseen events which devastate a company or industry, such as a public relations disaster or a major flop. A disaster can create huge financial losses and protection against losses due to disasters is one purpose of insurance. Disaster tourism is travelling to a disaster scene not primarily for helping, but because one finds it interesting to see. It can be a problem if it hinders rescue, relieve and repair work.

'Disaster' comes from the Italian disastro, which means "unfavourable to one's stars", ultimately from the Greek astron (star), and reflects the key characteristic of a disaster which is its unintentional nature. Catastrophes which are intentional, such as terrorist attacks, are often called man-made or technological disasters.

See also: catastrophe, disaster relief, space disaster, list of disasters .


A disaster in database terminology is a loss of data which cannot be recovered.

See also: Business continuity planning


Disaster in terms of Information Security and its relation with Crisis:

A disaster is the starting point of crisis. Disasters could vary in magnitude. In InfoSec there could be a small or big disaster in terms of expectancy loss. A small disaster doesn’t mean it is a crisis (a common misconception). It is still a disaster with lesser magnitude. That is how a boundary could be drawn between where a disaster ends and a crisis starts. A good ‘disaster recovery plan’ could always get back things to normal with controlled loss expectancy. On the other hand if a disaster converges to a crisis, recovery may not be a mode of option, but rather the focus would be to intelligently manage the way out of the situation that is in-tern called as ‘ Crisis Management ’.

Disasters



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