Many companies use “pop-up banners” to remind employees of the rules and policies governing their systems. These banners are also intended to add a degree of legal protection by noting that the employee has limited rights to privacy when using company computers and networks. The hard part of the equation is creating a policy to legally view this data. A simple “All electronic data is subject to monitoring” is too vague, while on the other extreme a list breaking down all the applications, devices and tools used can not only over-complicate things.”]