Tag Archives: EFI

Flaw in Thunderbolt ROM may allow overtaking of a Mac’s hardware

SecurityIconXA long-standing but recently revealed security hole in the EFI boot ROM in OS X system may allow attackers to take over Apple hardware that shipped with a Thunderbolt port.

In the upcoming Chaos Communications Congress in Germany, the attack, which was found by researcher Trammell Hudson, will allow a compromised Thunderbolt device to modify the ROM of a vulnerable Mac, which then could compromise the ROM Continue reading

How to hide a hard drive partition on your Mac

HardDriveIconXGenerally when you either partition your Mac’s boot drive, or attach a secondary drive to your Mac, then provided the partition’s formatting is compatible with OS X, you should see it mount and be available in the Finder. However, there may be times when you might wish to keep a partition hidden, either because you do not use it, or because it is not intended to be shown in the first place. Continue reading

Apple Issues MacBook Air EFI firmware update

FirmwareUpdateIconXIf you have a MacBook Air and are experiencing long pauses when waking from sleep, or if you find your system fans are regularly blaring after waking from sleep, then Apple has a fix in the form of an EFI firmware update, that should hopefully clear the issue.

The update, for Mid-2011 MacBook Air systems, is a small download available via Software Update in the Apple menu, Continue reading

Apple releases EFI firmware update for MacBook Air systems

FirmwareUpdateIconXFollowing the MacBook Air SMC firmware update released on June 9 to fix battery draining problems in the mid-2013 MacBook Air, Apple today released an EFI update for this system and the Early 2014 MacBook Air models, which fixes problems with waking from sleep and booting, as well as a memory and display management issue. Continue reading