Cybercriminals can potentially access the feeds from your webcam and microphone without your permission. Turn both of these off when you’re not using them, or even better, disconnect them entirely.
Also, if you work from home and need to join conference video calls for work, think about keeping your private home protected by using background blur or wallpaper features. An iteration of these are included in most video call programs and apps, but if you come across one that doesn’t have an option to obscure your surroundings, position yourself strategically to have as blank a background as possible. Face your camera away from walls with family photos or a view of the interior of your home.