What must be secured when leaving a work site to protect sensitive information?

Securing credentials when leaving a work site is essential for protecting sensitive information because credentials often serve as the key to accessing various systems and data. Credentials can include passwords, identification cards, security codes, and any other means that allow an individual to authenticate themselves within a secure environment. If these credentials are not safeguarded, unauthorized individuals could potentially gain access to sensitive areas or information, leading to data breaches or other security incidents.

While protecting mobile devices, documents, and computer systems is also important, credentials specifically provide the access required to navigate and interact with the security measures in place. Therefore, ensuring that credentials are secured helps prevent unauthorized access to both physical and digital assets that contain sensitive information.