[Securing the information system of health care organisations]

The information system involves all the resources managing information within a team. It mainly relies on the computer network. Prevention and protection measures are vital, especially in a radiotherapy department. They will aim to preserve the whole staff from potential risks connected with passwords, suspicious emails, specific websites, or USB flash drives. Also, they will consist in maintaining updated operating systems and software, activating antivirus programs and firewalls, and getting a map of the whole network and its users. Finally, it is necessary to anticipate failure scenarios and to set up recovery plans to continue the activity with lower resources.