Malware can give hackers access to your device's camera or webcam without your knowledge. Protect your computer against malware as much as possible. It is also best to cover the camera or webcam of your computer as a precaution. In this way you can be sure nobody can follow your private life – or your children's – without your consent. If you don't have a special cover for your webcam, just use sticky tape or the like to cover your webcam when you are not using it.