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Groups > comp.sys.mac.system > #57520

Re: File vault, firmware password, etc

From billy@MIX.COM
Newsgroups comp.sys.mac.system
Subject Re: File vault, firmware password, etc
Date 2014-03-03 17:05 +0000
Organization PANIX Public Access Internet and UNIX, NYC
Message-ID <lf2cp9$1kr$1@reader2.panix.com> (permalink)
References <1lhxa48.1f825xadchjy0N%dcohenspam@talktalk.net> <bnjdsqFii1pU1@mid.individual.net> <bnjkg2Fk228U2@mid.individual.net>

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Jolly Roger <jollyroger@pobox.com> writes about Firmware Password:

> It can, however be bypassed by changing the hardware configuration (for
> instance removing / adding RAM). Someone with physical access to the
> machine can overcome it.

Not on machines using the Atmel chip.  You either have to let Apple
read and decrypt the data on it, or replace the chip yourself.  Or,
feed "Atmel bios chip" into the search engine of your choice, and
find someone willing to do it for you.

Anyway, I'd expect this includes most all of the Intel-based Macs.

> Also, someone with root access to the machine can read the firmware
> password easily with the nvram command-line utility.

I will try to look at this later (don't have a password protected
machine available right now).

Billy Y..
-- 
        sub     #'9+1   ,r0             ; convert ascii byte
	add     #9.+1   ,r0             ; to an integer
	bcc     20$                     ; not a number

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Thread

File vault, firmware password, etc dcohenspam@talktalk.net (Daniel Cohen) - 2014-03-03 08:57 +0000
  Re: File vault, firmware password, etc Tom Stiller <clusterfux.upmon@gmail.com> - 2014-03-03 13:20 +0000
    Re: File vault, firmware password, etc Jolly Roger <jollyroger@pobox.com> - 2014-03-03 15:13 +0000
      Re: File vault, firmware password, etc Lewis <g.kreme@gmail.com.dontsendmecopies> - 2014-03-03 16:07 +0000
        Re: File vault, firmware password, etc me@home.spamsucks.ca (Király) - 2014-03-03 16:19 +0000
          Re: File vault, firmware password, etc dcohenspam@talktalk.net (Daniel Cohen) - 2014-03-03 17:57 +0000
            Re: File vault, firmware password, etc me@home.spamsucks.ca (Király) - 2014-03-04 00:03 +0000
              Re: File vault, firmware password, etc dcohenspam@talktalk.net (Daniel Cohen) - 2014-03-04 12:08 +0000
                Re: File vault, firmware password, etc me@home.spamsucks.ca (Király) - 2014-03-04 19:31 +0000
                Re: File vault, firmware password, etc dcohenspam@talktalk.net (Daniel Cohen) - 2014-03-04 20:46 +0000
                Re: File vault, firmware password, etc Tom Stiller <clusterfux.upmon@gmail.com> - 2014-03-04 21:41 +0000
                Re: File vault, firmware password, etc nospam <nospam@nospam.invalid> - 2014-03-04 17:01 -0500
                Re: File vault, firmware password, etc dcohenspam@talktalk.net (Daniel Cohen) - 2014-03-04 23:09 +0000
                Re: File vault, firmware password, etc Jolly Roger <jollyroger@pobox.com> - 2014-03-04 22:06 +0000
                Re: File vault, firmware password, etc Lewis <g.kreme@gmail.com.dontsendmecopies> - 2014-03-04 22:25 +0000
                Re: File vault, firmware password, etc billy@MIX.COM - 2014-03-04 22:39 +0000
                Re: File vault, firmware password, etc Lewis <g.kreme@gmail.com.dontsendmecopies> - 2014-03-04 23:26 +0000
                Re: File vault, firmware password, etc billy@MIX.COM - 2014-03-05 00:10 +0000
                Re: File vault, firmware password, etc billy@MIX.COM - 2014-03-04 21:48 +0000
                Re: File vault, firmware password, etc dcohenspam@talktalk.net (Daniel Cohen) - 2014-03-04 23:09 +0000
        Re: File vault, firmware password, etc Jolly Roger <jollyroger@pobox.com> - 2014-03-03 16:25 +0000
      Re: File vault, firmware password, etc billy@MIX.COM - 2014-03-03 17:05 +0000
        Re: File vault, firmware password, etc Jolly Roger <jollyroger@pobox.com> - 2014-03-03 17:10 +0000
        Re: File vault, firmware password, etc billy@MIX.COM - 2014-03-05 18:22 +0000
          Re: File vault, firmware password, etc Jolly Roger <jollyroger@pobox.com> - 2014-03-05 18:28 +0000
    Re: File vault, firmware password, etc dcohenspam@talktalk.net (Daniel Cohen) - 2014-03-03 17:57 +0000
      Re: File vault, firmware password, etc Tom Stiller <clusterfux.upmon@gmail.com> - 2014-03-03 19:11 +0000
  Re: File vault, firmware password, etc Alan Browne <alan.browne@FreelunchVideotron.ca> - 2014-03-04 17:10 -0500

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