Definition
Secure refers to the state of being protected against unauthorized access, use, disclosure, disruption, modification, or destruction. In practice, achieving security involves implementing a layered defense strategy that combines technical controls, administrative policies, and physical safeguards. This is crucial for protecting sensitive data, maintaining system integrity, and ensuring business continuity. For instance, a secure web application uses encryption and input validation to prevent common attacks like SQL injection. Unlike mere privacy, which focuses on data confidentiality, security encompasses the broader protection of systems and information from all forms of compromise. Concepts of secure system design are fundamental to certifications like CompTIA Security+ and the CISSP.