Speaking as someone who has received a phone call from their CEO, you typically do what the boss says and ask questions later. That’s exactly what the CEO of a UK-based energy firm did when the CEO of his parent company called. Directed to transfer send $243,000 to one of their suppliers within the hour. He complied. Later that day the CEO called back again and for a second payment. This time he hesitated because something seemed wrong. And he was right.