It’s shocking that anyone would use MS, they have a pretty terrible security record. https://www.cisa.gov/sites/default/files/2024-04/CSRB_Review_of_the_Summer_2023_MEO_Intrusion_Final_508c.pdf
Basically they used the same encryption key for every tenant and thought that rotating the key was too hard, so they stopped.
Did you know that you’re allowed to write all the letters in the word F-U-C-K on the internet?