BullGuard has a scanner that quickly scans your public IP address and ‘sees’ if your network has open ports that could pose a threat to you or even the internet. Here’s the link to see if you have something that is open on the internet.
If you do have devices that are visible – routers, wireless or other things such as DVRs – make sure you have the latest firmware and use strong passwords on these devices as a minimum.
If you perform a deep scan, your network is further analyzed and you may receive the warning below. If you intentionally opened a port AND you are actively monitoring your network by keeping updates and have ports opened along with firmware and 3rd party software updates, you are probably OK.