What should you do if you discover a lost access card?

The appropriate action to take when you discover a lost access card is to report it to the security office immediately to deactivate it. This is crucial because a lost access card can pose a significant security risk if it falls into the wrong hands. By deactivating the card, you help prevent unauthorized access to secure areas, ensuring the safety and integrity of the premises and its occupants.

Promptly reporting such incidents allows security personnel to take necessary precautions, such as monitoring for unauthorized use or investigating how the card was lost. This proactive approach not only mitigates potential risks but also reinforces a culture of safety and accountability within the organization. The other options do not adequately address the need for immediate action to protect security and access control protocols.