Cybersecurity is the profession of securing internet-connected systems, such as hardware, software, and data, from attack, damage, or illegal access. It is a set of technology, processes, and policies designed to protect against cyber threats such as hacking, malware, and phishing. The purpose of cybersecurity is to protect sensitive information and systems by ensuring their confidentiality, integrity, and availability. Individuals and companies must be aware and take proactive efforts to protect themselves against cyber dangers.