What does biometric verification for SIDA badges primarily utilize?

Biometric verification for SIDA badges primarily utilizes physical characteristics for identity confirmation. This method involves assessing unique biological traits such as fingerprints, iris patterns, or facial recognition to verify an individual's identity. The use of biometrics enhances security by ensuring that only authorized personnel can access restricted areas, as these physical characteristics are unique to each individual and very difficult to replicate or forge.

In contrast, personal identification numbers, employee IDs, and barcode scanning technology rely on non-biometric factors that can potentially be compromised or misused. For instance, someone could share their employee ID or pin with another person, whereas biometric data is inherently tied to the individual. Therefore, using physical characteristics for verification provides a more secure and reliable method for granting access to sensitive areas in aviation and other secure locations.