Researchers at Duo Security are expected to reveal data and a paper that shows Mac users are not receiving EFI firmware updates at expected. Duo Security analyzed data such as the build version and hardware model of more than 73,000 Macs, and compared that information to the respective EFI versions that should be running. Apple acknowledged Duo s findings and said it is working to improve the factors behind this situation. Duo said in its report that the same issues are likely present on Windows/Intel systems. Apple told Threatpost.com that it “continues to work diligently in the area of firmware security”””
Source: https://threatpost.com/macs-not-receiving-efi-firmware-security-updates-as-expected/128191/