Noticed lately a bigger push to put everything out on the cloud rather than owning your own (secure) servers. Requires annoying multi-factor authenication. Always thought it was just MS info grab; turns out Insurance companies are requiring it.
http://www.nwjww.com/minutes/SEPT2021.PDF
"… migrating the email that is being hosted onsite and move to the cloud-based environment through Microsoft. We would be monitored by Microsoft experts .."