The Chief Executive Officer (CEO) received an email from the Chief Financial Officer (CFO), asking the CEO to send financial details. The CEO thought it was strange that the CFO would ask for the financial details via email. The email address was correct in the "From “section of the email. The CEO clicked the form and sent the financial information as requested.
Which of the following caused the incident?
A . Domain hijacking
B . SPF not enabled
C . MX records rerouted
D . Malicious insider
Answer: B