Consumer privacy has long been the focal point of controversies regarding how companies handle personal data. Employee data is used by companies to monitor for things such as security threats, risky online behavior, and productivity drains. The US Electronics Communications Privacy Act (ECPA) prohibits companies from carrying out certain privacy infringements, such as monitoring their employees’ personal phone calls without consent. 50% of all corporate data usage on mobile devices is not business critical, according to Statista. The method of ownership for mobile devices used by employees has expanded beyond the traditional corporate owned, business only (COBO) model to include bring your own devices.”]
Source: https://www.darkreading.com/application-security/employee-privacy-in-a-mobile-workplace