This incident highlights a failure in endpoint and mobile device preparation, a core area in the ECIH curriculum. Mobile devices often store or provide access to sensitive enterprise data, and when lost or stolen, they represent a high-risk exposure point. ECIH emphasizes that organizations must implement centralized mobile device management (MDM/EMM) controls as part of incident readiness.

Option D is correct because configuring remote wipe functionality allows an organization to immediately remove sensitive data from a lost or stolen device, even when physical access is no longer possible. Remote wipe is a critical containment capability that prevents data leakage, credential misuse, and unauthorized access to internal systems.

Option A strengthens authentication but does not help once the device is lost. Option B secures communications but does not address local data exposure. Option C improves application-level security but does not allow device-level containment.

ECIH stresses that preparation controls must support rapid containment actions. Without remote wipe capability, the response team is effectively powerless to protect data on a lost mobile device. Therefore, Option D is the correct and most effective preparation step.