Cyber security is the practice of protecting networks, systems, and programs from digital attacks. These attacks are usually aimed at accessing, changing, or destroying sensitive information, extorting money from users, or interrupting normal business processes. Cyber security includes a variety of security measures, such as firewalls, encryption, and authentication, that are used to protect networks, systems, and programs from unauthorized access. Cyber security also involves the development of policies and procedures to protect data and systems from malicious attacks.
