• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Everyone has the right to privacy. This is the right to not have details about our lives to be held or circulated without our knowledge/consent. Data of personnel nature are collect every so often by organisations.

Extracts from this document...

Introduction

Chapter 13 - Protecting Data Issues of Privacy Everyone has the right to privacy. This is the right to not have details about our lives to be held or circulated without our knowledge/consent. Data of personnel nature are collect every so often by organisations. For example: * Employers hold personnel records that include data on address, age, qualification, salary, sick leave and so on. * Stores hold detail on credit card payment, accounts history, items purchased; * Banks hold details on salary, income and withdrawals, direct debits to various organisations; * Insurance companies hold detail on property, cars, accidents, claims and health. This list is endless. Modern technology has made it possible to store vast quantities of data, so that it can be viewed from all over the world and so that it can be used to create a profile of an individual. Threats to information Systems Organisations can protect the integrity of data (by preventing inaccurate data entry, malicious or accidental alteration), and simple measures can be taken to protect the security of data form theft or destruction. Data Integrity This refers to the correctness of data. The data held on a computer may become incorrect, corrupt or of 'poor quality'. ...read more.

Middle

e.g. A hospital receptionist may have the right to view and change some patient details, such as the name, address, and appointments. But they may not have access to the patient's medical file. Access rights to data could be set to 'read only', 'read/write' or 'no access'. This way a user in a company can gain access to data which they are permitted to see and can only change data if they are authorised to do so. Likewise, the computer it self can be programmed to allow access to data from a particular terminal, and only at a certain time of day. The terminal in the administrator's office may be the only terminal which has authorisation to change the structure of a database. An access directory can be made, which shows each user's access rights. Securing against fraudulent use or malicious damage Organisations are often exposed due to: * The possibility of fraud; * The deliberate corruption of data by unhappy employees; * Theft of software or data which may fall into the hands of their competitors. Measures to oppose these risks are as follows. * Careful selection of employees * Immediate removal of employees who have been sacked or who hand in their resignation, and the cancellation of their passwords and authorisation. ...read more.

Conclusion

A simple disk head crash can destroy a disk packing a fraction of a second. System designers must provide a reasonable backup facility that does not degrade the performance of the system and is not very expensive. The cost of lack of planning for a computer failure can be ruinous. Periodic Backups The most common way to ensure that data is not lost is to make regular copies of files into a safe place. This is called 'Periodic Backups'. This scheme has several weaknesses: * All updates to a file since the last backup may be lost; * The systems may need to be shut down during backup operations; * Backups of large files can be time consuming; * When a failure occurs, recovery from the backup can be even more time consuming. A benefit is that files which may have been fragmented can be reorganised to occupy smaller amounts of same, resulting in faster access time. It is important to store copies of data in secure areas. One copy of data can be held in a fire-proof safe in a building and another off-site. Recovery procedures A contingency plan needs to be developed to allow rapid recovery of major disruptions. It is necessary to do the following in backup procedures: 1. Identify alternative compatible equipment and security facilities, or implement a service agreement which provides equipment when needed. 2. Have provision for alternative communication links. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Computer Science section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Computer Science essays

  1. Marked by a teacher

    An introduction to Identity Theft

    4 star(s)

    In some cases the criminal will have a website set up which will require the input of banking/personal information; it will also enable the victim to view fictitious "bank accounts" with seemingly large available balances ready to transfer to him/her.

  2. I have been given the task to design a database for a company called ...

    Once you have done a macro like this you must save it as 'Autoexec' this is what commands the computer to open the form automatically. TESTING There are various strategies of testing, these include: * Dry run - manually working through out the program step by step * Unit testing

  1. With diagrams compare and contrast the relative advantages and disadvantages of digital transmission over ...

    > The sender cannot transmit characters simply as they might and consequently has to store them until it has built up a block, the system is unsuitable for applications where characters are generated at a irregular intervals. Serial synchronous transmission is principally used for high-speed communication between computers.

  2. Different ways of data capture

    *Faulty connection between hardware could mean characters are transmitted incorrectly. VERIFICATION AND VALIDATION VALIDATION CHAECK: Validation is making sure info is inputted sensibly/realistically and not necasarrily correct. USED TO DECREASE DATA ENTRY ERRORS Presence check - Certain fields must be present/filled in. Format Check - Code has a set format.

  1. Free essay

    Setting up and E-Commerce Site

    considered, this will allow for more hits on the website and for people to use it and by things.

  2. Security Issues of E-Commerce

    As for the personal computer, when being used for day to day activities we can see a clear need for anti virus protection, and anti spy ware detection, but why? Well, more and more people are in the market to defraud you, to commit crime and the internet has opened up a whole new bag of worms.

  1. Smart Card System

    the Java Card API specification will run on cards developed using the JCAE - allowing developers to use the same Java Card technology applet to run on different vendors' cards. * Multi-Application Capable - Multiple applications can run on a single card.

  2. CP3 - Proposed Solution to a Realistic Problem - Apartment Administration software

    The machinery will act instantly. Judgements can be made by the software on how to operate the machinery through a variety of different sensors located on the machine. Information storage and retrieval - This is when information on a file needs to be located by a user and use it to perform some sort of process and then store it.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work