I work at a clinic where we need to pseudonymize patient data. I wrote a small app for this using R (RStudio). R will be installed on computers with access to internet but my idea is to use R offline, i.e. fully blocking it with a firewall in order to prevent hacks on our pseudonymization app.
But before anything gets installed on any computer in our clinic it must be approved by our unit responsible for security. One worker from the unit asked me how the security updates will be installed since I want to use R offline. But I learnt that there are no security updates in R at all. Therefore it seems like my R app will get no approval from the security unit. I am surprised because R and RStudio seem to be widely used in professional context.
I am completely unfamiliar with cyber security. So in simple terms: How secure is the usage of R and RStudio in my context?
Edit
Internet access: Not the computer itself will be connected to the internet but it will be connected to the local work network.
"how do you get the data onto your computer to begin with": Data will be entered by the staff. This is also now the case. There will be no need for usb transfer.