Wireless is the primary access layer for so much of your network now, and the vulnerabilities of the devices coming onto the wireless network call into question the security on that access layer. Not that many years ago, the furthest you could go from your desk was the length of your Ethernet cable. With your whole organization no longer physically plugged into your network, you have to be able to secure your wireless network, which includes an increasing number of employee-owned devices. Issues include unpatched and unsecured devices accessing, transmitting, and storing corporate data, the proliferation of untested and often vulnerable applications running on these devices, the merging of personal and work tools and data on a single device, and the creation of 'Shadow IT', where non-corporate devices and applications store and share critical corporate data on cloud-based networks and services that are unseen and unapproved by IT.