Security And Integrity Of Data Essay Research

Security And Integrity Of Data Essay, Research Paper

Security

of data Security of data

involves the protection of data from anything that could destroy it, or

introduce errors to it, as this may corrupt data. Things

such as hazards, for example fires and floods, or another person gaining access

to the data and damaging it, can destroy data. The

security of data is very important, as many people store extremely important

documents on their computers, for example bank or health records which may

contain personal and confidential information about a person, which when

discovered could cause major problems. If somebody were to discover another

persons bank details through data being insecure, money could be taken from

their account, which would cause confusion and disruption for everybody. Data

does need to be kept secure, and there are many ways to do this, for example by

backing up data or putting passwords on your files. How data and

software can sometimes not be secureThere

are a large number of ways in which data and software cannot be secure, in some

of the following situations:·

Files can be

accidentally overwritten or deleted because of: ¨

Fraud ¨

Accident ¨

Files could have the

wrong data inputted·

They

could be lost due to: ¨

Losing discs ¨

Damage to the hard

drive ¨

Files or discs

destroyed·

Deletion or

corruption ¨

Discs could be

scratched ¨

Viruses ¨

The files could be

accessed and damaged by unauthorised users; this could be due to you not having

necessary password protection on your PC. Hackers and viruses Hacking

is gaining access to a computer system without authority, usually to cause some

damage to the system, or to gain information that would not usually be

available to the general public. People that do this could delete or corrupt

data, and copy it for themselves to use for their own reasons. Hackers are the

people that attempt to do this. Hackers once gaining entry to a system are

presented with unlimited options as to how they could damage the system. They

could simply copy files, delete them, or bring down the entire system.

Protecting a system against hackers has become an extremely important subject,

since there is no end to the damage that can be done. A virus is a program

which when ran would usually attempt to disrupt the use of your computer in

some way. Viruses can be written to do many things, from displaying messages on

your computer screen to allowing another person unauthorised access to your

computer to deleting files from your computer. Nowadays, a very

common way of spreading viruses is through the Internet. People often send

viruses through e-mail, which unsuspecting people then open and damage is

caused to their computer. Many viruses sent through e-mail now have the ability

to forward themselves to everybody in the recipients address book, meaning they

spread more quickly and to a larger amount of people. A virus that has been in

the news fairly recently was the .lovebug. virus, spread through e-mail it

would copy and forward itself to every person in every recipients address book

before causing some damage the computer. Protection from

hackers and viruses There

are a large number of ways in that an organisation can be protected from

hackers and viruses: ·

Using

anti virus software . There are a lot of different anti virus programs

available, which when loaded onto your computer can scan the memory and discs

for any viruses that could be potentially harmful to your computer. The

software would then remove any viruses found. However it is important to

regularly update your virus software, as new viruses are being discovered all

the time which old pieces of software may not be programmed to check for. ·

Stopping people

downloading files/placing files from discs onto the hard drive of the computer

. This would be a very effective way of preventing viruses, as no unauthorised

or potentially damaging software would be allowed onto the computer, as long as

people did keep to the rules. ·

Backing

up the system daily . This wouldn.t necessarily stop viruses within the system,

but in the event of the system being destroyed then it would be easy to quickly

replace everything that has been lost as it would be backed up on discs. ·

Have

one stand alone PC where discs can be checked for viruses, therefore if there

happens to be a virus on the disc it will only affect the one PC and not bring

a whole network down. ·

Using

user names and passwords that are unique. Therefore nobody would be able to

access the system without authorisation since they would not know these pieces

of information. ·

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