The key logger is essential for computer system because it is a type of surveillance that looks at the typing speed, keystroke logging, software, and others through the use of human-computer link.
A Keyloggers is known to be a kind of activity-monitoring software that are known as programs that helps hackers to be able to have access to any personal data.
Note that the key logger is essential for computer system because it is a type of surveillance and can be use to know who and when a person enters or leave a system.
Learn more about key logger from
https://brainly.com/question/16753710
#SPJ1