Essential facts about the firmware in your Mac, how it’s updated, and which version you should be running. With links to more detailed articles.
eficheck
If you’re working towards this benchmark (or those for earlier versions of macOS), or want to maintain systems to its requirements, I have something to help you.
What is wrong with this iMac, which has such a struggle updating its firmware? And why is Apple not acknowledging the problem?
Have you checked whether your Mac is running the latest version of firmware? For some iMacs, that might bring an unwelcome surprise.
There are three software systems at the heart of every Mac: its firmware (‘EFI firmware’), the system kernel, […]
Catalina upgrade may fail to update EFI firmware correctly in some Mac models, notable iMac17,1. Check your firmware!
macOS 10.15 Catalina brings EFI firmware updates for all supported models, and subsequent updates have changed those for […]
Now does much of what LockRattler does, without the barrage of numbers. It also checks automatically whether you Mac is up to date.
You can find out which EFI version your Mac is running, but how do you know whether that’s current, or old and vulnerable?
How can you check whether your firmware is fully up to date when Apple doesn’t help? A new app to make this much simpler, and automatic.
The Eclectic Light Company 