By now everyone should have heard about the 11 critical bugs that Intel found in the Management Engine:
https://www.wired.com/story/intel-management-engine-vulnerabilities-pcs-servers-iot/
Intel released a firmware patch:
https://www.intel.com/content/www/us/en/support/articles/000025619/software.html
Does anyone know if anything is available for Apple hardware? I understand that Apple does disable AMT and some other parts of Management Engine, but this seems to be a murky area.