In handling a case involving a missing laptop with sensitive financial data, the most important initial action regarding digital evidence is: * Securing the Scene: * Prevent Contamination: Secure the location where the laptop was last seen to prevent any further tampering or contamination of potential evidence. * Preservation: Ensure that any physical evidence related to the incident is preserved for further investigation. * Subsequent Steps: * Investigation: After securing the scene, proceed with interviewing personnel, reporting the incident to law enforcement, and analyzing the laptop (if found) without turning it on to avoid altering any evidence. References: * Guidelines for handling digital evidence:NIST Digital Evidence * Best practices in digital forensics: SANS Institute