EFI

A new research paper from Duo Security, shared by Ars Technica, reveals that a significant number of Macs are running out-of-date EFI versions, leaving them susceptible to critical pre-boot firmware exploits. The security firm analyzed 73,324 Macs used in production environments and found that, on average, 4.2 percent of the systems were running the incorrect EFI version relative to the...

Mac users who upgrade to macOS High Sierra will benefit from a significant new security feature that works in the background. macOS High Sierra automatically checks a Mac's EFI firmware against Apple's database of "known good" data to ensure it hasn't been tampered with, according to a series of tweets from an Apple engineer. The tweets have since been deleted, but a summary remains...