Mirroring of computer without the owners permission

[neku]

Government agencies are mirroring the computers of some citizens, especially paypal account holders giving the fake excuse of national security. They then use the stolen data to falsely claim that all the computer work is done by their lazy greedy friends, relatives and associates who do not spend any time, while the online worker is criminally defamed as lazy and idle. How to stop people, companies mirroring your computer to steal data?

 

[Carson20t]

How is this process done? if it is being done is there no way that you can tell that your computer is being mirrored like you have put it? At times I feel so unsafe with the way technology has evolved.