CEO targeted by fraud twice a month

Every couple of weeks or so, Tom Kemp's company gets hit by ever-more-sophisticated attempts to trick them out of large sums of money.
It started two years ago, before business email compromise -- also known as CEO fraud -- became as widely-known as it is today.
The email came in addressed directly to the company's controller, asking for a wire transfer of more than $350,000. The email seemed to come from the CFO and was part of a longer chain of emails between the CFO and the CEO discussing th