Computer Security is the process of detecting and preventing any unauthorized use of your laptop/computer. It involves the process of safeguarding against trespassers from using your personal or office based computer resources with malicious intent or for their own gains, or even for gaining any access to them accidentally.

 the different terminology used in Computer Security.

• Unauthorized access − An unauthorized access is when someone gains access to a server, website, or other sensitive data using someone else's account details.

• Hacker − Is a Person who tries and exploits a computer system for a reason which can be money, a social cause, fun etc.

• Threat − Is an action or event that might compromise the security.

• Vulnerability − It is a weakness, a design problem or implementation error in a system that can lead to an unexpected and undesirable event regarding security system.

• Attack − Is an assault on the system security that is delivered by a person or a machine to a system. It violates security.

• Antivirus or Antimalware − Is a software that operates on different OS which is used to prevent from malicious software.

• Social Engineering − Is a technique that a hacker uses to stole data by a person for different for purposes by psychological manipulation combined with social scenes.

• Virus − It is a malicious software that installs on your computer without your consent for a bad purpose.

• Firewall − It is a software or hardware which is used to filter network traffic based on rules.