Security refers to the measures taken to protect a system, organization, or individual from threats, damage, or unauthorized access. It encompasses various aspects, including physical security, which protects buildings and assets; cybersecurity, which safeguards networks and data from cyber threats; and personal security, which focuses on the safety of individuals and a wide range of fields and applications each with its own specific focus.
In summary, security is about protecting assets and information from various threats to ensure safety and trustworthiness, minimizing risks and ensuring safety through proactive planning, systems, and controls.
