Check file and server permissions

[rifathasan]

It’s also important to make sure your home router is set up correctly. If someone hacks into your home network, they could gain access to all sorts of information, including potentially where sensitive information about your WordPress site(s) is stored. Here are some simple tips:

Don't enable the remote control ( VPN ) feature. Regular advertising database users never use this feature, and by disabling it, you can avoid exposing your network to the outside world.
Routers use IP addresses in a range such as 192.168.1.1 by default. Use a different range such as 10.9.8.7.
Enable the highest level of encryption on your Wifi.
Add your Wifi to an IP whitelist so that only people with a password and a specific IP address can access it.
Update your router firmware.
And always be careful when logging into your WordPress site in public places. Remember, Starbucks is not a secure network! Take precautions like checking the network’s SSID before you hit connect. You can also use a third-party VPN service like ExpressVPN to encrypt your internet traffic and hide your IP address from hackers.