What are the security and management issues concerning virtual offices, especially hooked up into large virtual networks?

As more and more businesses allow their employees to work remotely, there are security and management issues arising such as:

1. Having an environment where confidential data needs superior protection. It becomes then more challenging to the company’s IT Staff to maintain same level of security on a number of devices with varying operating systems.

2. The probability that a device will be stolen or lost increases since there are varying factors on how a virtual worker will safe keep his or her devices. When this happens, crucial and sensitive data can be accessed by unauthorized persons.