1.Ensure that you have changed the default username and passwords for the administrator accounts, especially if you are using a wi-fi system. The hackers can easily access your network from outside the building and can hack into your system as all routers come with standard passwords.
2.Ensure that the firewall on all the computers and routers is turned on. Revoke rights that can allow the users to set the firewall off. Installing additional personal software on each computer will help you make your system more secure.
3.Assign static IP addresses to each of the computer. Ensure that you set up a private IP address range to prevent your computers to be directly accessible from the Internet.
4.Set the ‘Auto Connect to wi-fi’ option off. You computer may accidentally connect to a neighboring network, which can pose severe security threats.
5.In case you have a wireless network setup, then change the default SSID immediately. Also, ensure that you have disabled the SSID broadcast feature on your network router.
6.Network should be turned off when not in use. Turning it on and off frequently is not a feasible solution, however when the network will not be required for an extended period of time, it can be turned off.
7.Enable and use Wired Equivalency Frequency (WEP) which will help encrypt all the data exchanged over your router.
8.Enable MAC address filter on your network. You will also have to provide MAC address to all your computers to turn the filtering on. A MAC address is very difficult to fake and increases the security of a network tremendously.
9.Use a non-standard channel for your wireless network which will make it difficult for your hackers to access your network.
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