An employee reports that they received a WhatsApp audio message from their CEO's registered account asking them to urgently purchase $8,000 in gift cards for a client deal. The voice in the message sounds exactly like the CEO. What should the employee do first?

• A.Forward the message to IT security and wait for their approval before proceeding
• B.Complete the purchase since the CEO's account and voice both match
• C.Do not purchase anything; immediately call the CEO directly on a number from the company directory (not from WhatsApp) to verify the request, and report to the security team regardless of outcome
• D.Ask the CEO to send the same request from their corporate email to provide a second verification channel