Introduction (CSS)

Computer Security :-

Computer Security is the protection of information systems from theft or damage to the hardware, software and to the information on them.

It includes controlling physically access to the hardware, as well as protecting against harm that may come via network access, data and code injection, and due to malpractice by operators.

We can design the policies for information security within an organization by providing :

i) Confidentiality : 

Only authorized users can access the data resources and information.

ii) Integrity :

Only authorized users should be able to modify the data when needed.

iii) Availability : 

Data should be available to users when needed.

iv) Authentication :

Communicating with the authorized.

Components of the computer System :-

The components of a computer system that needs to be protected are :

1. Hardware

2. Firmware

3. Software

1. Hardware : 

The physical part of computers, like the system memory and disk drive.

2. Firmware :

Permanent software that is etched into a hardware device's non-volatile memory and is mostly invisible to  the user.

3. Software :

The programming that offers services, like operating system, word processor, internet browser to the user.

                Goals of Computer Security System's :

Computer Security has three main goals :

1. Confidentiality :

Making sure people cannot acquire information they should not (keeping secrets).

2. Integrity : 

Making sure people cannot change information they should not (Protecting data).

3. Availability :

 Making sure people cannot stop the computer stop they computer from  doing its job.

PROBLEM RELATED WITH COMPUTER SECURITY

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