Updating imac firmware
Ahead of their talk, they published a blog post and released a technical paper to describe the vulnerabilities they discovered in some Apple Macs.
Conducted over the past few months, Duo's research focused on differences between how technology vendors updated their devices' firmware versus their software.
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At least 16 different Apple Mac models have not received any updates for a certain type of firmware, which could leave those devices vulnerable to targeted hacks that are difficult to detect, according to researchers at the cloud-based security company Duo Security.
Smith and Bruienne said the study looked solely at Macs because Apple controls every aspect of its devices, from hardware and firmware to operating system and apps.
The vulnerabilities they identified, though, most likely apply to other vendors as well, they said.
I followed Apple's instructions, but after every time I place the disc in and the long sound bleeps, it ignored the disc and boot Snow Leopard instead.
Our system has found that you are using an ad-blocking browser add-on.
Does anyone know how I can get to installer to run properly?After that, I was finally able to install the i Mac EFI Firmware Update program.But when I opened that program, I got another error message: The firmware restoration CD isn't working for me.I unpackaged the installer and dug into the file i Mac Firmware
That's when I found out why I got the error message.
My i Mac was failing the has Valid EFI() function because my current firmware wasn't on the list of EFI's qualified to be update, even though my firmware was made for the same machine (IM51).