A significant lack of visibility into devices and networks is putting businesses at risk for data leakage and phishing attacks, according to a study conducted by Enterprise Mobility Exchange.

The study showed that nearly 50 percent of mobile workers spend the majority of their worktime connected to non-corporate public Wi-Fi and carrier networks. Of that 50 percent, over 27 percent claim to connect to non-corporate owned networks more than 76 percent of the time. And, over 60 percent lack tools to audit when a device connects to a third-party network. Over half of the companies were also unsure how to even monitor device data traffic and to which servers users were connected to, beyond their corporate firewalls.