The FBI can record keystrokes and activate web cams, and they are not the only ones, as even criminals can. To depend yourself, you should be informed. Did you know that a malware could remotely activate your webcam even without your camera’s light turning on, and could logged keystrokes from your PC? For the past years, the FBI has been able to send malware to target systems and remotely activate their web cameras, log keystrokes and record the video feeds. These actions are done to investigate on serious crimes and terrorism.
Source: Information Week