Making sure that people understand how to protect their data is an important first step to protecting a network. Encouraging people to use strong passwords, not to open emails from unknown addresses, and to back up their data all helps.
An organisation is likely to have a plan in place for what to do if a cyberattack should happen. This could be as simple as ensuring data backups are available to rebuild the system, or having technical advisers on hand to help.
Additional network hardware such as firewalls to prevent unauthorised access from outside the network, and software such as an intrusion detection system are both examples of using technology to improve the security of a network.