The Company Finning International Manager of Security Operations, Brian Uhreen, knew he had a problem when his users stopped trusting the email they were getting from their own colleagues. Finning is the world’s largest dealer of Caterpillar heavy equipment and diesel engines. With more 12,000 workers spread across six countries, the 88-year-old company relies on email to keep business humming. Whether its ordering parts, answering customers’ questions, paying invoices or selling equipment, Finning uses email in almost every part of the business. But in 2017, a growing volume of fraudulent messages was taking a toll on operations. Employees, trained to be on the lookout for fraud, were questioning normal day-to- day requests. Legitimate business was being held up. And the IT departm

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