npr[.]org/2021/08/26/1013501080/chinas-microsoft-hack-may-have-had-a-bigger-purpose-than-just-spying?ft=nprml&f=1013501080&t=1629991065648
Some cybersecurity experts think that HUGE attack on Exchange servers, and several other very large, successful hacks/data thefts, were all about collecting the huge datasets needed to train AI.