Security Basics mailing list archives
Re: Laptop Encryption & Hibernation
From: "Kevin Snively" <kevinsnively () comcast net>
Date: Thu, 23 Sep 2004 16:11:59 -0500
It will not reset until there is no power. The power is a small battery on the MB (motherboard). This "power" keeps the contents of the chip intact rather than the defaults from the factory settings - even the date and time is kept by the battery (when the system is powered down). But most of all the original msg was about intel compatable computers and the Operating System in question was Windows XP (not my choice of either <smile>). Completely understanding the technology and the details greatly enhances our success with security. Hope this helps. But ----- Original Message ----- From: "Jonathan Loh" <kj6loh () yahoo com> To: "Kevin Snively" <kevinsnively () comcast net>; "Security Basics[List]" <security-basics () securityfocus com> Sent: Thursday, September 23, 2004 2:30 PM Subject: Re: Laptop Encryption & Hibernation
--- Kevin Snively <kevinsnively () comcast net> wrote:Btw (ByTheWay) BIOSs are not passworded the way you are suggesting.
Simply
removing power from the bios (remove battery or battery connection on MB (motherboard) will reset any passwords and "Clear" the BIOS back to defaults - not an expensive or complicated fix. This depends on make and model of MB. Also some (such as Dell, if memory serves me) have a reset shunt (aka jumper) and on others you have to remove power by
disconnecting
the battery.On newer systems that may be but I remember the Sun Sparc machines, which
did
not do a password clear even if the removable prom was taken out. Later
I
learned if you leave it out for a couple days (yes days!). It will
PROBABLY
reset itself. I've had one out for three days and it still didn't reset. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail
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Current thread:
- Laptop Encryption & Hibernation James McGee (Sep 20)
- Re: Laptop Encryption & Hibernation Kevin Snively (Sep 22)
- RE: Laptop Encryption & Hibernation dave kleiman (Sep 24)
- Re: Laptop Encryption & Hibernation GuidoZ (Sep 24)
- Re: Laptop Encryption & Hibernation Kevin Snively (Sep 24)
- Re: Laptop Encryption & Hibernation GuidoZ (Sep 25)
- Re: Laptop Encryption & Hibernation Barrie Dempster (Sep 27)
- RE: Laptop Encryption & Hibernation Philip Wagenaar (Sep 24)
- Re: Laptop Encryption & Hibernation Kevin Snively (Sep 22)
- <Possible follow-ups>
- Re: Laptop Encryption & Hibernation Kevin Snively (Sep 24)
- Re: Laptop Encryption & Hibernation Jonathan Loh (Sep 24)
- Re: Laptop Encryption & Hibernation Kevin Snively (Sep 24)
- Re: Laptop Encryption & Hibernation Jonathan Loh (Sep 24)
- Re: Laptop Encryption & Hibernation Jonathan Loh (Sep 24)
- Re: Laptop Encryption & Hibernation Ravishankar (Sep 25)
- Re: Laptop Encryption & Hibernation J. Theriault (Sep 27)