What is computer security?

Computer security, also known as cybersecurity, is the protection of computer systems and networks from information disclosure, theft of or damage to their hardware, software, or electronic data, as well as from the disruption or misdirection of the services they provide. It encompasses various technologies, processes, and practices designed to prevent unauthorized access, use, disclosure, disruption, modification, or destruction of information. Common security measures include firewalls, antivirus software, intrusion detection systems, authentication mechanisms (like passwords and multi-factor authentication), and security audits.