Hacking means breaking into someone else's computer without permission. Although hacking is classified into several levels, from defacing the home page of a website to breaking into government departments of national security, it is illegal no matter what reason or motive.

The school computer network may have security vulnerabilities within the software installed. Hackers can easily attack and gain control of the school server. Installing firewall software can control and monitor the data traffic of the server and prevent a hackers' attack. To prevent students from installing software with a backdoor access, make sure the student users' accounts do not have any administrative rights and cannot install any third party software without permission.