Data security
Data security is about keeping data safe and affects anyone relying on a computer system. If the data on a computer system is damaged, lost, or stolen, it can lead to disaster.
Key threats to data security
Data may get:
- lost or damaged during a system crashWhen an application or operating system no longer responds. Crashes can be caused by software and hardware. - especially one affecting the hard disk driveA device used to store large amounts of data.
- 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 virusA small program written to cause harm to a computer.
- hackedIf a computer has been hacked, someone has gained unauthorised access to it. into by unauthorised 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