Forced by my company to create a Microsoft account with my personal email address

Title. I'm a part-time employee, and part-time employees don't get company email addresses, so my personal Protonmail address is what my company uses for all work communications. My company is now requiring all employees be vaccinated, and that they upload their vaccination info to some third party site. Turns out, in order to access this site, I needed to create a Microsoft account for my "work address" which is just my personal address. As soon as I got set up …

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