The router manufacturer also knows that it is not safe to give 60 seconds of rest after 3 wrong entries. To randomly type the 8-digit password will take 6.3 years. But by dividing each string into 4 characters, now less than 1 day has broken WiFi.
See also: 8 best wireless Wifi routers 2017
If you use the right tool, breaking the WPA2 WiFi password will take less than a few hours. Since WPS is standard for all routers and is turned on by default, you should turn it off and remember to check again because some loose WPS batteries cannot be turned off.
In fact, no matter how cautious, there is still the possibility of a WiFi network being hacked. Just having enough time and patience is difficult for hackers to find a way. There is only a way to turn off WiFi but in this era it seems a bit difficult. So the only way is to remember to always update your device with the latest firmware.