• Network security is a set of tools and procedures that work together to keep a company's network safe. It is primarily concerned with protecting the data and network's confidentiality and accessibility from internal attacks.
• Information security is more than just protecting data from unauthorised access. The practise of preventing unauthorised access, use, disclosure, disruption, alteration, inspection, recording, or destruction of information is known as information security. Physical or electronic information can exist. Information can be anything from your personal information to your social media profile, cell phone data, biometrics, and so on.
• Computer security is concerned with the hardware and software of a solo computer. One of the most critical aspects of this form of security is keeping standalone machines updated and patched.

Read More: Why are internal threats usually more effective than external threats?