"Microsoft lost its keys, and the government got hacked"
https://techcrunch.com/2023/07/17/microsoft-lost-keys-government-hacked/
While unrelated, this is also a great reminder that there is no such thing as "a backdoor only for the good guys". The good guys will eventually get hacked, or the access will eventually be misused.
"Compromised Microsoft Key: More Impactful Than We Thought"
Our investigation of the security incident disclosed by Microsoft and CISA and attributed to Chinese threat actor Storm-0558, found that this incident seems to have a broader scope than originally assumed. Organizations using Microsoft and Azure services should take steps to assess potential impact.
Gonçalo Valério