|
The manufacturers outsourced the work to Ireland years ago.
Sent from my Amstrad PC 1640
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
AntiTwitter: @DalekDave is now a follower!
|
|
|
|
|
|
The attack relies on the data remanence property of DRAM and SRAM to retrieve memory contents that remain readable in the seconds to minutes after power has been removed.
I was working with a video capture card (B&W) in the 80's. I had turned the machine off, pulled the card out of the slot and moved it to another computer, then booted that computer. Crazily, even after a couple minutes of no power, a good 80% of the image that had been in memory was still there and recognizable. We're talking minutes, not seconds, and not SRAM either.
|
|
|
|
|
That's one reason why memory was so much slower back then. They used actual capacitors to retain the charge in the memory bit and apparently they had rather low leakage current so they could hold it for a while.
|
|
|
|
|
Leakage current has always been minuscule but the surface of the CMOS, which is the source of the "parasite capacity" used to actually store data in DRAM dropped by a huge factor, so it became relevant.
GCS d-- s-/++ a- C++++ U+++ P- L+@ E-- W++ N+ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t+ 5? X R+++ tv-- b+(+++) DI+++ D++ G e++ h--- ++>+++ y+++* Weapons extension: ma- k++ F+2 X
|
|
|
|
|
How did you make sure the new boot didn't overwrote memory space? Also how did you access that specific part of memory?
|
|
|
|
|
Hype!!
I found the only true guarantee for security here: OneSafe Software – Official Website – Utility software for PC & Mac
It makes your PC safe! But! I can see in the photos that it also makes Mac's safe! (Even if the ⌘-key is black.)
 What really bugs me is that frauds like this appear on big sites, in this case Yahoo!
They should really be able to maintain a minimum degree of advertising hygiene.
... such stuff as dreams are made on
|
|
|
|
|
megaadam wrote: What really bugs me is that frauds like this appear on big sites, in this case Yahoo!
Anything that appears on Yahoo! is suspect, IMO. In fact, Yahoo! itself is a big fraud!
|
|
|
|
|
Grrrrrrrrrrrr[^]
I have lived with several Zen masters - all of them were cats.
His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.
|
|
|
|
|
While that may be true, I was spewing anger over the general phenomenon of malware ads on very big sites.
... such stuff as dreams are made on
|
|
|
|
|
It's not necessarily the size of the site that matters.
Just wait until your bank does it.
|
|
|
|
|
megaadam wrote: What really bugs me is that frauds like this appear on big sites, in this case Yahoo!
They should really be able to maintain a minimum degree of advertising hygiene.
These days Yahoo will take anyone's advertising money.
|
|
|
|
|
security author wrote: Simply locking your computer is not sufficient for encryption.
That's a terrible sentence leading to much confusion.
Almost positive author meant:
Quote: Locking your computer is not an effective security method (since files are not automatically encrypted).
Bad technical writing wastes so much time.
|
|
|
|
|
I don't know what it is specific to the topic of cyber-security, but all of the training that's been foisted upon me has contained similar nonsense. This in itself would be bad, but that same training usually contains at least one dangerous bit of technically inaccurate information.
Anyhow, the "currently offline" site that is "Always Online" made me burst out laughing...seriously, spittle was involved 
As I'm in the midst of some drudge work right now, the laugh was much appreciated.
|
|
|
|
|
Marc Clifton wrote:
The information on your computer is only fully protected by encryption when it is powered off or in hibernate mode. Simply locking your computer is not sufficient for encryption.
 Yeah, information is definitely "protected" when the computer is off. But how encryption protects your data when the computer is off is beyond me. Maybe I'm not as smart as I thought.
You don't necessarily need a password to get a locked running OS to do stuff for you as the current logged in user (e.g. via a USB attack), and since it can read the encrypted files...
If they've enabled the full-drive encryption, and especially the encryption build into the hardware of 2.5" drives, then even if you have physical access, you're going to need the password before you can read the data on the drive if the computer is off when you get there.
|
|
|
|
|
Marc Clifton wrote: Nonpublic information should only be saved to your network drive
So "private" information then? If it's private to me, I'm not sure it should be made "publicly" available.
Marc Clifton wrote:
Dude. You really don't want to use "currently offline" and "Always Online" in the same sentence.
I understand what you are saying, but perhaps since the latter is a proper noun (i.e., capitalized), it's not really referring to a state, thus those terms can co-mingle.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
|
|
|
|
|
David Crow wrote: but perhaps since the latter is a proper noun (i.e., capitalized), it's not really referring to a state, thus those terms can co-mingle.
Quite so, but the proper noun is a product that "guarantees" delivery of a cached static page when your server is down. Which (the cached static page) wasn't working. 
|
|
|
|
|
Maybe that page falls outside of the "limited copy" range, or it's perhaps not considered "popular."
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles
|
|
|
|
|
Some people have a mouth that is Always Online™ even when their brain is currently offline 
|
|
|
|
|
I think it was HP that had a laptop that was insanely secure, but may have been slightly less so if you were already logged in.
|
|
|
|
|
Quote: Nonpublic information should only be saved to your network drive
This means that only public (insensitive) data should be on your computer in case it is lost or stolen?
Quote: The information on your computer is only fully protected by encryption when it is powered off or in hibernate mode. Simply locking your computer is not sufficient for encryption.
As mentioned before, encryption keys are deleted from memory cache when computer is powered off. I gues that's how BitLocker works, this is talking about disk encryption!
|
|
|
|
|
The information on your computer is only fully protected by encryption when it is powered off or in hibernate mode. Simply locking your computer is not sufficient for encryption.
Yeah, information is definitely "protected" when the computer is off. But how encryption protects your data when the computer is off is beyond me. Maybe I'm not as smart as I thought. I guess this refers to some setup of encryption keys is done during boot up (for e.g. full disk encryption) or login (for private user files encryption). If someone can access the computer in other ways while it is still running, and with the keys set up, the intruder may be able to decrypt files. If the intruder can log in under another user name, full disk encryption doesn't protect the disk. If he can access the machine through a network, he may be able to impersonate himself as you, and retrieve your files regardless of keyboard and screen being locked.
If the full-disk encryption requires a password at boot time, the thief won't be able to boot up the machine. If you haven't logged in, the decryption of your personal files is not set up. So I am not laughing as much of it as you do.
I do laugh at Windows decrypting my personal files without me giving any decryption key, and I must have blind faith in Windows not doing the same encryption for someone else. But if you open an encrypted .zip archive in WinZip, and type in the secret password for retrieving one file from the archive, then WinZip will remember that password until you close WinZip, so that any passer-by could sit down at your desk and see other encrypted files without specifying the password. You must exit WinZip to avoid such peeking. Similarly, you must log out to avoid peeking into your Windows encrypted private files.
Even though it is old now: Security aware people should read the design documents for the Kerberos authentication system. There is a thorough discussion of all the considerations they made to make sure no eavesdropper would be able to pick up secret keys and passwords.
|
|
|
|
|
I have a project loaded with JScript calling ActiveX objects. Those are Windows objects. Silverlight was technically about putting the Windows object in a web page. Not sure I would go that route in any case, but what is the current status of Silverlight. (I'll probably do my AJAX thing. Have you ever used an Update Panel?  )
|
|
|
|
|
|
I liked Silverlight. It was like WPF, but for the web.
".45 ACP - because shooting twice is just silly" - JSOP, 2010
-----
You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
-----
When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
