I had LASIK done about 16 years ago. No problems. The pattern that the laser made on my corneas resulted in my eyes becoming DIFFRACTION GRATINGS when looking at bright, point-light sources like LEDs. For normal viewing everything was normal.
Green and red LEDs are pure. Yellow LEDs are a blend of several colors. -- This from looking a LED stop-lights at night.:^)
And, if you're already logged in to the account...
Are you sure?
No, but if this is the scariest form of the video, I'm not impressed. It demonstrates that the user is logged in and the keychain is already unlocked.
I mean, ostensibly it doesn't work if the keychain is locked, which at least is supposed to happen when you sign out (*not* when the screen saver locks the screen), but can we be certain that this isn't a password bypass attack on the keychain locking itself? The article says nothing about the mechanism of action, nor about conditions under which it is reproducible.
I'm assuming that the screensaver is running while "KeySteal" is not yet. So, it can't steal things. If the thief can log in, then they have access to the Keychain anyway.
Logout or have a locking screensaver and you're safe.
I'm pretty sure that's not true. Apps continue to run in the background when the screen is locked, and AFAIK have the same access to the keychain as they do when the screen is unlocked.
Yes, but since it's shown already running in an unlocked session. If the thief can't log in, they can't launch "KeySteal"
So yes, ostensibly locking the screen prevents someone from running the app, but if somebody manages to couple this with a remote exploit that allows running code without console access, I don't think a locking screensaver will help.
Those are hypotheticals that are not demonstrated in the video. Maybe if the thief has root access they can steal even more, but that's not demonstrated.
Basically, you're relying on defense in depth and hoping for the best, unless I'm missing something, and that's less than ideal.:-)
And Unix userspaces, too.
It is probably better to change your keychain settings to lock the keychain on sleep and then put your machine to sleep instead of leaving it protected only by a screensaver — assuming, of course, that this is not a complete password bypass.
Maybe. If there is more fire to go with this smoke, I'll be glad to learn more.
Why couldn't I defeat port-knocking by watching for the connection behavior of successful users and then mimicking them? - spoofing MAC address, etc, if necessary.
But the solar and wind companies had the backing of the government. The coal, oil, and nuclear companies certainly didn't in the previous administration. (and being able to deduct expenses from your profits is not a subsidy)
Is it still cheaper when you factor in transport, storage, all of the other things involved?
Since you hook it up to the same electrical grid, the delivery costs are the same as any other energy source.
Storage only matters if you don't have adequate baseline production to cover variations in solar generation. If you have reliable solar or it is a small part of the overall production, then storage is irrelevant. This is how it is typically used today.
Without storage, you have to fall back on that "baseline production" when the wind isn't blowing or the sun isn't shining. Then you're back where you started - without solar or wind production. Which means that everything that you spend on solar and/or wind is an extra cost! (Also, efficiencies that you would get if you used your baseline production at their peak are lost, as well.) If you spend the bucks on storage, you're back to a very expensive system. And, you might still run out of storage and need a backup of some sort.
Storage can be quite economical, but only when it is done at scale---which no one has really felt the need to do, at least in the US. As the prices of fossil fuels continue to rise over time, investing in storage infrastructure and solar expansion will make more sense.
Storage is going to be getting more expensive as batteries get bigger and materials become more scarce. Your phone battery degrades, so will your community-sized battery pack. R&D will help things - it usually does, but supply and demand is going to be a killer.
Batteries for storage at scale? Like the battery Tesla built for Southern Australia? It's good for 6 minutes -- more of a UPS, than a main power source. Have you heard of large-scale battery use elsewhere?
If he was a bunch of strawberries, he never would have made it on the plane. The people in charge of the Antarctic logistics put a very low priority on "freshies" (and personal mail).
BTW, it was a pleasure flying with the NY Air Nat'l Guard.
You haven't been to Samoa. Heat, humidity, molds, time -- a very effective destroyer of hardware (even glass). See the AC's link for something similar...
While the idea of a sunny Pacific island may seem like an easy and ideal place for solar power, this may not be the case.
When I worked for NOAA, I heard wild stories about how the molds in Samoa would destroy our scientific instruments. They would even eat glass... This should prove an interesting and challenging situation.
As opposed to the current transfer of public goods, services, and privileges to private (sometimes foreign) interests through access to the highest levels of the gov't courtesy of donations to the Clinton Foundation?
I and many other Americans decided to risk your hypothetical instead of continuing the current reality.
As someone who was physically close enough to do something to Hillary before she was anything outside of Arkansas, I've never thought that "Lee Harvey" was needed. And I'm NOT a fan.
Slashdot Mirror
<sarc>Well, let's just stop doing all that, then! </sarc>
I had LASIK done about 16 years ago. No problems. The pattern that the laser made on my corneas resulted in my eyes becoming DIFFRACTION GRATINGS when looking at bright, point-light sources like LEDs. For normal viewing everything was normal.
Green and red LEDs are pure. Yellow LEDs are a blend of several colors. -- This from looking a LED stop-lights at night. :^)
After a few years, it went away. :^/
Only if you plug this into your DVR! It's not meant to be used to actually power a laptop.
Next!
Are you sure?
No, but if this is the scariest form of the video, I'm not impressed. It demonstrates that the user is logged in and the keychain is already unlocked.
I mean, ostensibly it doesn't work if the keychain is locked, which at least is supposed to happen when you sign out (*not* when the screen saver locks the screen), but can we be certain that this isn't a password bypass attack on the keychain locking itself? The article says nothing about the mechanism of action, nor about conditions under which it is reproducible.
I'm assuming that the screensaver is running while "KeySteal" is not yet. So, it can't steal things. If the thief can log in, then they have access to the Keychain anyway.
I'm pretty sure that's not true. Apps continue to run in the background when the screen is locked, and AFAIK have the same access to the keychain as they do when the screen is unlocked.
Yes, but since it's shown already running in an unlocked session. If the thief can't log in, they can't launch "KeySteal"
So yes, ostensibly locking the screen prevents someone from running the app, but if somebody manages to couple this with a remote exploit that allows running code without console access, I don't think a locking screensaver will help.
Those are hypotheticals that are not demonstrated in the video. Maybe if the thief has root access they can steal even more, but that's not demonstrated.
Basically, you're relying on defense in depth and hoping for the best, unless I'm missing something, and that's less than ideal. :-)
And Unix userspaces, too.
It is probably better to change your keychain settings to lock the keychain on sleep and then put your machine to sleep instead of leaving it protected only by a screensaver — assuming, of course, that this is not a complete password bypass.
Maybe. If there is more fire to go with this smoke, I'll be glad to learn more.
And, if you're already logged in to the account...
Logout or have a locking screensaver and you're safe. This would not be a problem in my home.
Both of which are now FREE - but not open.
Why couldn't I defeat port-knocking by watching for the connection behavior of successful users and then mimicking them? - spoofing MAC address, etc, if necessary.
Maybe not 3 "changes", but they have used the Motorola 68000 series, the IBM PowerPCs, and Intel's Core/i3/i5/i7" series
But the solar and wind companies had the backing of the government. The coal, oil, and nuclear companies certainly didn't in the previous administration. (and being able to deduct expenses from your profits is not a subsidy)
That's difference.
Is it still cheaper when you factor in transport, storage, all of the other things involved?
Since you hook it up to the same electrical grid, the delivery costs are the same as any other energy source.
Storage only matters if you don't have adequate baseline production to cover variations in solar generation. If you have reliable solar or it is a small part of the overall production, then storage is irrelevant. This is how it is typically used today.
Without storage, you have to fall back on that "baseline production" when the wind isn't blowing or the sun isn't shining. Then you're back where you started - without solar or wind production. Which means that everything that you spend on solar and/or wind is an extra cost! (Also, efficiencies that you would get if you used your baseline production at their peak are lost, as well.) If you spend the bucks on storage, you're back to a very expensive system. And, you might still run out of storage and need a backup of some sort.
Storage can be quite economical, but only when it is done at scale---which no one has really felt the need to do, at least in the US. As the prices of fossil fuels continue to rise over time, investing in storage infrastructure and solar expansion will make more sense.
Storage is going to be getting more expensive as batteries get bigger and materials become more scarce. Your phone battery degrades, so will your community-sized battery pack. R&D will help things - it usually does, but supply and demand is going to be a killer.
Batteries for storage at scale? Like the battery Tesla built for Southern Australia? It's good for 6 minutes -- more of a UPS, than a main power source. Have you heard of large-scale battery use elsewhere?
Yes, but they were (originally) largely subsidized by the goverments' (of all sizes) giving them land, eminent domain, etc...
In the meantime, melting the clathrates would involve heating them (or, improperly phrased, "releasing their cold") and _cooling_ the environment.
Yes, in very recent news it has been stated that the military will be doing so: http://www.washingtontimes.com...
I did this, but for a lot shorter time. If you read the instructions, it asks you to enter your password _plus_ the verification code to log on.
You have to enter your PIN or password after reboot.
Perhaps a better way to phrase it:
Q: If you are stationary at the South Pole, in what direction does the Sun appear (when visible) to move?
A: From the East to the West.
(It's easier to get to the South Pole.)
Ummm... Doesn't added speed slow time down? (It's always been my primary reason for speeding ;^)
Have you looked at Apple's cash reserves? 'Cause winning. More.
Bitcoin?
If he was a bunch of strawberries, he never would have made it on the plane. The people in charge of the Antarctic logistics put a very low priority on "freshies" (and personal mail).
BTW, it was a pleasure flying with the NY Air Nat'l Guard.
You haven't been to Samoa. Heat, humidity, molds, time -- a very effective destroyer of hardware (even glass). See the AC's link for something similar...
While the idea of a sunny Pacific island may seem like an easy and ideal place for solar power, this may not be the case.
When I worked for NOAA, I heard wild stories about how the molds in Samoa would destroy our scientific instruments. They would even eat glass... This should prove an interesting and challenging situation.
As opposed to the current transfer of public goods, services, and privileges to private (sometimes foreign) interests through access to the highest levels of the gov't courtesy of donations to the Clinton Foundation?
I and many other Americans decided to risk your hypothetical instead of continuing the current reality.
As someone who was physically close enough to do something to Hillary before she was anything outside of Arkansas, I've never thought that "Lee Harvey" was needed. And I'm NOT a fan.
Did you forget to comment as AC?
Joined up without lurking... I didn't know it was a thing!