Computer security can be defined as the protection of all computing systems and the data they access or store. Computer security permits organisation to attain their missions by;
- Enabling them to carry out their daily tasks and research
- Supporting critical firm processes
- Protecting all sensitive and personal information
That said, let us take a look at the 3 types of security:
- Physical computer security.
Physical security is the utmost primary type of computer security and even more, the easiest to comprehend. In simple words, anyone with the physical access to a computer controls it.
Hidden files, passwords, and other security features cannot keep out any skilled and determined attacker forever as long as he has physical access to your computer.
Computer hosting firms take this type of computer security extremely seriously, and that is why they use secured doors, hire guards, and even go a step further to place their computers on deserted islands and military bases just to keep everything safeguarded.
- Network Computer Security.
Every person today understands that a firewall is a vital piece of security. The firewall provides network security by blocking all unauthorised network access attempts to your computer.
Though note that a firewall only safeguards home computers. Servers on the net cannot use firewalls; their entire purpose is to accept access trials from random strangers. This makes network computer security a tricky task.
Since network security is so complicated, and since networking itself is so crucial, lots of significant computer failures nowadays are as a result of network security problems.
- Executable Computer Security.
Perhaps the security type most of us are familiar with is executable security (also regarded as anti-virus security).
Blocking viruses is vital, but it is also big business, so it gets typically overvalued over the other sorts of security. Every half-baked but decent programmer can write down a network security firewall, but lots of anti-virus software (such as Kaspersky and E-set) are written by hundreds of thousands of programmers due to their complexity. We term this executable security since it’s what computer specialists call programs; executables.