The difference between digital and Wi-Fi-based baby monitors is that digital monitors send signals over what s known as the frequency hopping spread spectrum (FHSS). These send a signal directly and securely from a transmitter in the camera to the receiver on the parent unit.
Alternatively, Wi-Fi video baby monitors behave in the same way as all other devices currently connected to your Wi-Fi network – by connecting to your router. This does, of course, make it as susceptible to hackers as other devices on your network. As long as your network is protected and the camera s firmware is up to date, the risk is minimal.