Lower your WiFi Signal strength for security
Decrease your Wifi Security Signal on your router access point.
Make it harder for attackers to even reach your wifi network for cracking it.
Make the signal only reach inside of your building and not outside to the parking lot.
This will force attackers to get closer to the building and can easily be spotted.
Or they might simple not spot your network at all and not be able to attack you or will attack another network with a stronger signal.