It's pretty common: https://en.wikipedia.org/wiki/Electronic_health_record

where else should they put them

On paper I imagine but I wouldn't know.

Where do you think records were stored before computers were invented?

filing cabinet

I was wondring too what’s the need of overdigiting everything in psychiatry. Sure, stuff becomes searchable and is easy to archive but the the risks don’t compare with locked down file cabinets.

Therapists exist in a society where everything is digitized so they don't even think twice about digitizing these records. They aren't tech workers, much less security experts, so they really do this without a second thought.

I don’t think so. Many if not most therapists would likely much prefer only having notes on paper.