Cybersecurity 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. Cybersecurity professionals use a variety of tools and techniques to protect organizations from these threats, including firewalls, encryption technologies, user authentication protocols, and virtual private networks. Additionally, they monitor networks for suspicious activity and respond quickly to any potential cyber threats.