What is Kathleen's best option to ensure the users of the passcards are who they are supposed to be?

To ensure that the users of the passcards are who they are supposed to be, incorporating a biometric factor is the best option. Biometric authentication relies on unique physical characteristics such as fingerprints, facial recognition, or iris scans, which are difficult to replicate or forge. This adds a layer of security that confirms the identity of the user beyond what a simple passcard or key might provide.

Integrating biometric verification enhances the overall security framework by tying the access rights directly to an individual’s biological traits, thereby significantly reducing the risk of unauthorized access. Even if someone were to steal a passcard, they would still need the biometric trait of the authorized user to gain access, which adds a substantial barrier against identity fraud.

While increasing the number of keys issued might seem to bolster access capabilities, it does not effectively address the core issue of verifying user identity. Implementing stronger authentication protocols could provide a broader range of strategies but may introduce complexity without specifically tying identity to an individual biometrically. Utilizing RFID keycards instead may improve convenience in access but does not enhance identity verification, as it still relies on something that can be lost, stolen, or shared.