If you're concerned that someone may be watching your baby monitor, there are a few things you can look for. First, check to see if the monitor is password-protected. If it's not, anyone with access to your Wi-Fi network could be watching. Also, take a look at the activity logs on your router to see if there's any suspicious activity. If you suspect that someone is indeed spying on your baby monitor, you can take steps to block their access and improve the security of your home network.