Definition
Verification is the process of confirming that a system, component, or process functions as intended and meets specified requirements. It involves systematically checking and validating that everything operates correctly and securely throughout its lifecycle. This ensures that technology is reliable, safe, and performs according to design specifications. In practice, verification occurs through various methods like testing, code reviews, and audits to identify and rectify defects. It is crucial for maintaining system integrity, preventing security breaches, and ensuring user trust. For instance, verifying a firewall's rule set ensures it correctly blocks unauthorized network traffic. Verification differs from validation, which confirms the system meets user needs, whereas verification confirms it meets design specifications. This concept is fundamental across domains like CompTIA Security+, CySA+, and AWS Certified Solutions Architect Associate.