It can be difficult enough to protect your business network when all of the equipment and devices are company-owned and under one roof. This is a feat that becomes even more difficult when members of your workforce use their own devices for business purposes.
Imagine for a second that you equip your home with a state-of-the-art security system in order to keep out unwanted guests. If a thief so much as opened a window to crawl through, your system would detect their actions and alert authorities.
But, regardless of this advanced security system, you also left your front door unlocked and wide open, so that pretty much anyone could walk right in.
Some small or medium-size businesses have an IT infrastructure where each application runs on its own dedicated server. These applications can be anything from email to data storage, and they leave plenty of computational power unused. This is now a very outdated and inefficient practice thanks to the concept of virtualization.