A member of the IT department received a call from an individual claiming to be from the telecommunications company that provides services to the organization. The caller requested the IT staff member to confirm sensitive configuration details about the company's PBX system to help resolve an alleged network issue. Which of the following is the BEST course of action for the IT staff member to take?
Share the requested information to resolve the network issue promptly as the caller seems knowledgeable about the company's telecommunications setup
Place the caller on a brief hold to inform a supervisor about the request and then return to share the information
Tell the caller to send an official request for information through email and then proceed with the call
Verify the caller's identity by calling back on a known, official number of the telecommunications company before providing any information