What is IT security ?

IT security, also known as cybersecurity, is the practice of protecting computer systems, networks, and data from unauthorized access, cyber attacks, theft, and damage. It involves implementing measures such as firewalls, antivirus software, encryption, and access controls to ensure the confidentiality, integrity, and availability of information and technology resources. IT security aims to prevent and detect security breaches, respond to incidents, and mitigate the impact of cyber threats on an organization.