When you doing some work on home computer, can somebody else know what work i am doing?
Yes offcoarse, there are many available apps for that….. also somebody can not only see what you are doing but also control your pc with the help of some Trojans like NetBus ( search for NetBus n similar trojans on net ) But for other person viewing or controlling your pc, he must be connected with you either on net or lan….. also he must install those torjans on your pc n for that he must either have a direct physical contact to your pc once or send you some files in which trojans are hidden….For preventing this always use a good updated antivirus software…….