What you need to know:
Employers can have a variety of reasons to monitor employees while they’re working, including to protect the company from lawsuits, to protect its intellectual property, to maintain the integrity of its hardware/software, and to make sure employees are following guidelines and maintaining productivity levels.
These myriads of reasons have been amplified in the digital age with devices like laptops and smartphones being used increasingly for work along with the growing trend of remote online working, leading to more companies using technology to surveil their employees.
In general, your employer has the ability to monitor what you type, your internet activity, take screenshots of your devices, note what files you access and when, monitor your physical location and measure your productivity through idle time and software/app usage.
As a general rule, if you’re working digitally on a company-owned device or have granted them access to your personal device then they can conduct this level of monitoring without your consent.
What to do:
There is not much you can do, as employers generally have a right to conduct this type of surveillance.