Security The Kingsway School

Accidental Data Loss Data can be lost or damaged by: Hardware failure such as a failed disk drive Operator error e.g. accidental deletion Disasters such as fires e.g. 9-11

Security Data is the most important thing to most businesses. The loss of this data could threaten an organisation’s existence. Security can be looked at from two angles: Guarding against accidents Guarding against Malicious and Criminal activities

Malicious Acts Hacking The unauthorised accessing of files. Damage may be caused by deliberate or accidental deletions. Data often needs to be kept secure. Viruses Viruses are computer programs designed to copy themselves and attach to other files. Malicious Employees Employees sometimes cause deliberate damage.

Dealing with Malicious Acts Physical Protection Locking rooms Security Guards Keep sensitive information on stand alone machines not on networks. Alarm systems, video cameras

Dealing with Malicious Acts Software Protection Make files read only Hide files for minimal protection Password protect the network Change passwords regularly Password protect screen savers Data Encryption- data is scrambled before transmission and can only be unscrambled with the correct decode software. Levels of Access-Step passwords to reduce rights. Firewalls-to prevent software access to a PC.

Dealing with Viruses Prevention Don’t allow employees to bring in floppy disks Use filtering software to prevent downloads Scan incoming s Update virus software Do not open suspicious s

Backing Up Important data must be regularly backed up in case a server becomes unusable. Usually done onto tape and the tapes must be stored off site. Online backups are convenient. The data is uploaded onto a server somewhere else. You should always save your work into at least two separate places.