<div class="gmail_quote">On Mon, Nov 7, 2011 at 6:17 AM, Tim <span dir="ltr"><<a href="mailto:ignored_mailbox@yahoo.com.au">ignored_mailbox@yahoo.com.au</a>></span> wrote:<br><div> </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
With suspend and hibernate, the computer stores everything that it's<br>
currently doing (documents your reading/editing, pages you're browsing,<br>
etc), so that when you wake the computer up, you resume from where you<br>
left off.<br>
<br>
Hibernate stores it to hard drive, and the next bootup will read this<br>
and resume, automatically.<br>
<br>
Suspend does it to RAM. So your computer needs (minimal) power<br>
continuously available to it, to keep what it's stuffed into memory. If<br>
the memory is lost, then the next boot will be a cold boot.<br></blockquote><div><br>But without intentionally deleting memory, how could it be lost except for the case that power has gone and I am not using UPS....Cold boot simply means that it doesn't need credentials to log-on?<br>
</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
When it works, resuming from a suspend can be quicker. Hence why the<br>
riskier option exists.<br>
<br>
Both are security hazards, though. If you have an encrypted system, to<br>
protect you against what a thief could do with your data, being able to<br>
resume makes it easier for them to crack in. Because resume will only<br>
ask you for a log on password, the cold boot decrypt password query was<br>
answered, by you, when you originally booted up.<br></blockquote><div><br>But still how thief can log-in when I have encrypted password, password necessary to boot in, disabled booting via CD-rom, disabled booting via usb. Still chances are there that the thief can crack in ?<br>
<br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Some sort of hardware token, such as a key that must be inserted while<br>
booting, but is kept separate from the computer, is the simplest way to<br>
avoid that problem.<br clear="all"></blockquote><div><br>This I didn't understand how to achieve, but thanks for the above explanation. Now, I know the difference between Hibernation and Suspension. Would prefer it now.<br>
<br></div></div>-- <br>THX<br>