What is the concept of BYOD?

A company policy that dictates whether or not employees can bring in their own devices to work. Bring your own device (BYOD), aka bring your own technology (BYOT) is a movement wherein organizations allow their employees to bring and use their own device over an officially provided one. This policy has been a huge hit with startups and smaller companies who won't need to spend a small fortune in buying new devices. However, BYOD tends to be a nightmare for your IT guys. It's hard to keep track of these devices and often leads to shadow IT complications.