Security is the practice of protecting people, information, infrastructure, and assets from harm, loss, or unauthorized access. It includes a wide range of disciplines—such as cybersecurity, physical security, information security, network security, and financial security—all designed to reduce risk and maintain trust, continuity, and resilience.
Organizations rely on security frameworks, monitoring tools, policies, and incident‑response processes to defend against threats like cyberattacks, fraud, theft, natural disasters, and insider misuse.

