Published on June 2nd, 2015 📆 | 6764 Views ⚑


Firmware Bug in OSX Could Allow Installation of Low-Level Rootkits

There is a vulnerability buried deep in the firmware of many Apple laptops that could allow an attacker to overwrite the machine’s BIOS and install a rootkit, gaining complete control of the Mac.

The vulnerability lies in the UEFI system on some older MacBooks, and researcher Pedro Vilaca discovered that after a MacBook is put to sleep and then brought back up, the machine’s low-level firmware is left unlocked.