IT security: IT security or Information Security is the protection of data using electronic networks. When Cybersecurity is limited to protecting the Digital version data, IT security has a broadened perspective of securing both digital and physical forms of data from hackers all around.
Cybersecurity:
The cybersecurity definition is that it protects your digital data from cybersecurity breaches. It is implemented in your computers, PC, laptops, or other systems that are susceptible to attacks by hackers.
Computer security or Network security:
Network security or computer security focuses on the in-between areas between hardware and software. When you’re sending information through your computers, the server that you are sending the information to should be the sole recipient of it. Attackers can intercept your information mid-way and make changes to it. They can also access it and steal sensitive content. Computer security uses a combination of both hardware and software to protect the information you are sending.