Bypassing efi firmware password mac

However, it means a thief can quickly wipe your Mac and start using it.

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Modern versions of FileVault encryption provides whole-disk encryption of your Mac. FileVault encryption also protects your files if people try to boot another operating system on your Mac or remove its system drive and read it in another computer.

If you chose to share it with Apple during the FileVault setup process, they can help you regain access to your files. Even with FileVault enabled, someone with access to your Mac could still wipe it from recovery mode and set it up as a new system. A firmware password can protect against this.

Someone could still rip the hard drive out of your Mac and access its files on another device if you just use a firmware password without encryption, however. If you do set a firmware password, be extra careful to remember it. But you can set that firmware password ahead of time. Any Mac running a previous version of OS X will still be vulnerable unless their owners have gone out of their way to enable FileVault encryption. Image Credit: Michael Gorzka on Flickr.

bypass efi password mac

The Best Tech Newsletter Anywhere. After entering the passcode the Mac starts up from the designated startup disk and disables the passcode.


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A firmware password is not the same as the administrator password or login password. It's a separate password that appears immediately after boot and must be entered into the system lock screen, which appears as a lock symbol on either a black or a gray background.

mac book pro efi password reset

Low-level passwords are quite secure, which also means there is potentially a headache if the password is forgotten. The process requires the original receipt or invoice as proof of purchase.

There's a Way to Reset Mac Firmware Passwords Without Apple's Help

Earlier versions of macOS required manual installation of the firmware but, starting in , Apple began bundling EFI updates with the macOS updates in order to deliver security patches to all users. But as security firm Duo Labs discovered in late , some Macs aren't getting the right firmware , which makes them vulnerable to hackers. They recommend checking the firmware version and updating if needed. That lead to a serious security issue, allowing the firmware to be revealed in a native macOS app and weakening the enhanced security Apple had hoped to introduce with the addition of the firmware password.

In , however, Apple added an important change to the system: the firmware password was moved to a separate programmable controller from Atmel.

Part 2: How to Bypass Mac OS X Password

This component contains lockable flash memory to store the password and requires special programming with identifier numbers for both the Mac's motherboard and the Atmel chip to access and reset it. Since the controller is an independent component, the only way to bypass it is to manually remove it from the motherboard, but this requires highly precise reflow soldering tools and techniques.

If none of the above methods worked, there are still two more options to try: either have Apple do it for you , so long as you have the original receipt or invoice, or alternatively use any of the EFI lock bypass hardware kits available for sale on various sites.