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Write a note on Data Storage and Transmission Risks.

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Information is power required. But,

if the power goes.into the wrong hands. Data stored in

the systems and en-route is encountered

to a various number of risks. Vital information

may be stolen or modified to pursue

some selfish motives or simply for fun/

adventure. You must have heard of

‘virus’ and ‘hacking’. Do you know the

full form of the acronym ‘VIRUS?’ It

means Vital Information Under Siege.

Actually, virus is a program (a series of

commands) which replicates itself on the

other computer systems. The effect of

computer viruses can range from mere

annoyance in terms of some on-screen

display (Level-1 virus), disruption of

functioning (Level-2 virus) damage to

target data files (Level-3 virus), to

complete destruction of the system

(Level-4 virus). Installing and timely

updating anti-virus programmes and

scanning the files and disks with them

provides protection to your data files,

folders and systems from virus attacks.

Data may be intercepted in the

course of transmission. For this, one

may use cryptography. It refers to the

art of protecting information by

transforming it (encrypting it) into an

unreadable format called ‘cyphertext’.

Only those who possess a secret key

can decipher (or decrypt) the message

into ‘plaintext’. This is similar to using

‘code words’ with some one so that

others do not understand your


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