Unit 13 IT Systems Troubleshooting and Repair Anne Sewell Lesson Objective “To Understand data security and Integrity” Looking at Assignment 2, Working Towards M3: “Maintain data security and integrity when applying fault remedies” Activities in this lesson will be based around data security and backing up data

Mini Activity Working in pairs, write down 3 things you think you know about Data Security: ___________________________________________ Names: ___________________ ___________________

Assignment 2: Diagnostics and repairs Task 8 M3 maintain data security and integrity when applying fault remedies. Finally, the IT Manager has decided to offer you the promotion on the condition that you can prove that you are capable of maintaining data security and integrity when applying fault remedies. You need to evidence this task using annotated ‘before’ and ‘after’ screen dumps of backing up data and restoration. In addition, you need to provide an explanation in MSWord of what other procedures should be in place to maintain data security and integrity. Data security and integrity: data back-up; recovery procedures; maintaining security e.g. virus protection, access rights, physical protection

What does “Data security” mean?

What does “Data security” mean? Physical security, network security and security of computer systems

What does “integrity” mean?

What does “integrity” mean? “the state of being whole and undivided”

Data Security You may have written down something similar to the following Data security is about keeping data safe. Many individuals, small businesses and major companies rely heavily on their computer systems. If the data on these computer systems is damaged, lost, or stolen, it can lead to disaster.

Data Security The Key Threats to Data Security Data may get: lost or damaged during a system crash - especially one affecting the hard disk corrupted as a result of faulty disks, disk drives, or power failures lost by accidentally deleting or overwriting files lost or become corrupted by computer viruses hacked into by unauthorized users and deleted or altered destroyed by natural disasters, acts of terrorism, or war deleted or altered by employees wishing to make money or take revenge on their employer!

Keeping Data Secure Measures that can be taken to keep data secure include: making regular backups of files (backup copies should be stored in fireproof safes or in another building) Protecting against viruses by running anti-virus software using a system of passwords so that access to data is restricted safe storage of important files stored on removable disks, e.g. locked away in a fireproof and waterproof safe allowing only authorized staff into certain computer areas, for example by controlling entry to these areas by means of ID cards or magnetic swipe cards

Keeping Data Secure always logging off or turning terminals off and if possible locking them avoiding accidental deletion of files by write-protecting disks Minimise the possibility of loosing files by emailing them to yourself or using Cloud technology to save “offsite” (away from your office) using data encryption techniques to code data so that it makes no apparent sense

Keeping Data Secure Online Banking When banking online, after logging in, always check that the ‘http’ in the address bar has changed to ‘https’. This indicates that a secure connection between your computer and the bank's computer has been established. Data sent between the two computers is encrypted so that anyone trying to intercept your data will receive meaningless data. The data can only be decrypted into readable data by using a key that is known only to the two computers - yours and the bank's.

Activity Data Security Question In a local doctor's surgery, data about the patients is stored in a database on a computer. Consider two physical precautions that should be taken to keep the data secure.

Activity Data Security Possible Answers keep the computer area secure keep backups in a safe place Hint The key word is physical - the question is asking for the physical precautions you can take to protect data. Keeping the computer area secure and keeping backups in a safe place are both physical precautions. Swipe card entry, locking terminals or controlling access to computer areas would also have been good answers.

Activity Data Security Question The doctor needs to see all the information about patients. The receptionist only needs to see some of the information. Describe one way in which software could restrict access to patient information.

Activity Data Security Answer Make it so users must enter a password to gain access to certain areas of the database. Comment The question is looking for detail about different types of access for different users. This answer clearly highlights the need for having passwords for different levels of access.

How to Back Up Your Files/Computer in Windows http://www.youtube.com/watch?v=x_jih9HukwI

Wordle says…

Activity 1 Quiz Complete the 9 questions on the Interactive questionnaire under unit 13 on Moodle (the questions relate to the information on the slides we have just looked at) Add your name to the printout and hand in as evidence towards M3

Activity: copy information from one place to another for safekeeping - handout Working in small groups – use the laptops provided to backup data. Use the USB provided to do this. START/SETTINGS/CONTROL PANEL From ‘Pick a Category’ choose: ‘Performance and Maintenance’ From ‘Pick a Task’ choose: ‘Back up your data’ From ‘Backup or Restore Wizard’ choose: ‘Backup Files and Settings’. CLICK ON ‘Next’ In the ‘What to Back up’ choose: ‘My Documents and settings’, CLICK ON ‘Next’ Choose a ‘Place to save your backup’ (USB) Type a name i.e. annesbackup, click NEXT In the ‘Completing the Backup or Restore Wizard’ choose ‘FINISH’. ‘Backup Progress’ shows then ‘FINISH’. ‘The Backup is Complete’.

Activity Differentiation Click on the following link and watch the interactive video on data security (use subtitles) – you will need to respond to questions when asked http://www.bbc.co.uk/schools/gcsebitesize/ict/databas es/6datasecurityrev1.shtml

Online Activity Differentiation Locate this PowerPoint document on the VLE from Unit 13 Click on the link and carry out the following: http://www.bbc.co.uk/schools/gcsebit esize/ict/implications/virusesandlifestyle s_act.shtml

References http://www.bbc.co.uk/apps/ifl/schools/gcsebitesize/ic t/quizengine?quiz=datasecurity;templateStyle=ict Edexcel Unit 13 chapter Intranet resources for Unit 13

Homework Deadline Monday 20th April Complete M3 Assignment Task on Assignment 2. Deadline Monday 20th April