How many of your employees have a smartphone? The answer is probably most (if not all) of them. In the United States alone, nearly two-thirds of adults own a smartphone, and many of them depend on the device to do much of their personal computing. As a result, many workers, even if they are instructed not to, will use their devices while at your office. This is why many companies have put in place a comprehensive Bring Your Own Device (BYOD) strategy.