[Golden]

well in reality its actually not easy to spy people . it is not as easy as you think . basically the FBI or someone that want to spying on you need to install some RAT or remote administration tool on your computer . they can bundle it with software or something . but basically the goal is to install that backdoor or rat into your computer

once the victim installed the rat . the hacker can have a full privillege of your computer and with that they can open your camera , hear through your microphone , see what you doing , see your files , installing another virueses and more . but that doesnt mean you should afraid

the good news is that this type of virueses is easy to detect . most antivirus will detect a rat easily because most of them have sort of same code . and to be secure what you need to do is tape your microphone and webcam . yes microphone too because they can hear you too

Most antiviruses only look at data that is requesting to be sent when trying to detect a virus. However, some viruses are advancing so it isn't so easy to detect anymore.

[Arkiven4]

In the past . The virus maker just make a virus and spread it . Now the virus maker find ways to make profit from it. So the virus maker make the victim data as hostages and tge victim must pay for it . Profitable $$ xD