Stop using Microshit products China. Anything critical, really anything, but especially anything government or military related should be run on hardened systems. Anything public-facing like email servers that unlike say a Windows 10 desktop cannot be really locked down or secured via other systems should be something other than Microsoft. I really hope China still extensively keeps secrets exclusively on paper as that's the only way to stay safe at the level of exposure they have to western tech from the empire of hackers that is the west.