Data loss is one of computing’s most misunderstood concepts. A user is suddenly unable to access a file and is suspended in a state of confusion and panic, wondering, Where did my data go, and how do I get it back? What caused the data loss

One recent data recovery survey on 200 IT managers of small and mid-sized businesses in March to investigate what they perceive to be security threats, as well as preventive measures that they are taking against these threats. Somewhat surprisingly, the threat of data loss has emerged as the top cyber-security challenge or threat identified by these managers. Specifically, this is an area that is cause for concern for 37 percent of the polled managers.

Worm ：Application Network；Malicious software which is a stand alone application. Worm is Often designed to propagate through a network, rather than just a single computer

An episode of data loss will result in two outcomes: either the data is recoverable or is permanently lost. In today’s environment, with numerous backup and recovery solutions, businesses need not suffer episodes of irretrievable data, except in case of careless planning or major disaster. We will assume for the purposes of this paper that all data may be retrieved

Data loss due to virus attack is one of the the common reasons causing your data loss.