It comes with a few consequences and drawbacks, however. Follow along to read about the risks associated with firmware passwords as well as a guide on how to set one for those that think it's still worth it. Setting a firmware password keeps your Mac from working with another bootable volume without inputting a password. Unlike other Mac passwords that can be reset or deleted, the firmware password remains in an area of persistent memory on the Mac's motherboard.
Here are the step by step instructions for how to do it. Read on for an important note on why it may not be a good idea, however.
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Under ordinary circumstances, you won't see the firmware password field appear. Years ago firmware passwords could be easily subverted by simply removing memory forcing the computer's Extensible Firmware Interface, or EFI, to reset itself.
Firmware passwords: a mixed blessing – The Eclectic Light Company
Apple fixed it starting with Mac models. These days your Mac's firmware password isn't easily reset. If you forget it, you're in for a long haul. In fact, Apple only recognizes one official way to reset a firmware password: Bring your Mac in to an authorized Apple Service Provider or an Apple retail store and have them do it there.
Turn on/Turn off Firmware Password using MacOS Recovery on Mac Mojave, Sierra
First we need to make a small modification to the Disk Utility so that it will allow us to see invisible areas of your hard drive. This command make the Debug menu available in Disk Utility. Open Disk Utility. You will see that some areas of the hard drive are now visible, although they are grey, indicating they are not mounted:. Navigate through to find the Firmware Password Utility,and then double-click to open it:. An authentication window will appear.
Power on your Mac. You should get right into the Recovery HD mode. View all posts by: Marc Mintz.
RSS - Posts. RSS - Comments. Support Blog. November 10, Marc Mintz. Hello does it work on Sierra I can't turn on Debug menu by this terminal command :. April 23, Hello Serg.
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Never keep that password with or near the protected computer, though. First check that you are not entering your password with the Caps Lock on: this is now shown in the password field to remind you. Step carefully through entering your password, ensuring that you use the correct characters, e. If the password entry field shows a question mark? If you have set a blank password, try entering no password at all.
If you changed your password, try the old password as well as the new one, even your Apple ID password, perhaps. Some versions of macOS allow you to use your Apple ID: enter three incorrect passwords and you may then be invited to reset your password using your Apple ID. If there is another admin account on that Mac, you can log in using that account, and reset the password on your own account. It may also be possible to reset your password from Recovery mode, using Disk Utility and Terminal there.
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When your Mac starts up in Recovery mode, select Disk Utility. Then with that running, open Terminal in the Utilities menu.
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At its command prompt, enter resetpassword and press Return. Select your normal startup volume, then select the account in the Select the User Account dialog. Complete the next sheet with the new password and its hint, and click on Save. Once that is complete, you can restart in normal mode and should be able to log in using the new password. Moral: keep a copy of your username and password in a secure place. Never keep those with or near your Mac, though.
Apple EFI firmware passwords and the SCBO myth
Normally prompts for the password which accompanies your Apple ID include that Apple ID, to make it clear which account they are for. This is not as straightforward as it used to be, though, because of its security implications. Moral: keep a copy of your Apple ID and password in a secure place. Never keep those with or near your Mac or any iOS device, though. When you use any of the above methods to change your user password, your original keychain will still be protected by your original password.
xn-----ilccdawbf1bfizghhhcisj1vva.xn--p1ai/includes/switzerland/pretzel-coupons-printable.php The only way that you can gain access to it is to unlock it using that password, then change its password to your new one.