Submit Hint Search The Forums LinksStatsPollsHeadlinesRSS
14,000 hints and counting!


Click here to return to the 'Protect your Mac using an Open Firmware banner' hint
The following comments are owned by whoever posted them. This site is not responsible for what they say.
Protect your Mac using an Open Firmware banner
Authored by: tgunr on Jan 11, '05 11:19:17AM

To all the folks trying to use the Open Firmware password protection let me make this perfectly clear; to quote Richard Nixon. :)

Numero Uno, Open Firmware password protection is dependent upon the physical security of the unit. Since the password can be reset by changing the physical RAM size it is fairly obvious that in order to prevent changing the size the unit must be in a secure location e.g. locked in a cabinet.

Second, once invoked the boot-device is locked down and there is no way to change booting to a different device since the search algorithm is disabled along with all snag keys that can modify the boot-device. This severely limits the booting flexibility Mac users enjoy over their PC brethren.

Password protection was primarily implemented to protect units in environments where the computer can be physically locked. This means towers and and iMacs that can be locked to prevent access to the RAM.

Any other environment will at best only prevent casual attempts at breaking the security. At worst, if you need to switch boot devices or want to use the unit in target disk mode it is a pain to have to go into Open Firmware every time.

I personally have never used it nor ever will until the RAM override mechanism is removed which will never be since Apple was concerned about thousands of units which could potentially be locked forever if someone tried to use password protection and subsequently forgot their password.



[ Reply to This | # ]
Protect your Mac using an Open Firmware banner
Authored by: limbo on Jan 21, '05 06:03:00PM

I've dealt with enough clients that have lost their regular login passwords to know this is a big possibility.

And really the open firmware password is going to screen out quite a few people. There is no reason that the person who steals your laptop is going to be tech savvy.



[ Reply to This | # ]