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Science and Tech Discuss questions of science, science and progress, that do not speak as loud as your heart. Also, tech stuff.

 
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Old 05-14-2018, 09:10 PM   #1426 (permalink)
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Old 05-14-2018, 09:41 PM   #1427 (permalink)
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IMPORTANT: security flaw in PGP encrypted email found

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If you’re using encrypted email (PGP and S/MIME) to exchange sensitive data with others, you should consider other alternatives until you hear they’re safe again. A security flaw would allow attackers to turn encrypted emails in plaintext.

For the time being, there’s no fix so your best bet would be to remove these encryption standards from their email communications.

Security researchers in Europe discovered the security flaws, posting on Twitter about the issue.

Sebastian Schinzel, professor of computer security at Münster University of Applied Sciences, said the flaws “reveal the plaintext of encrypted emails, including encrypted emails you sent in the past,” which sounds just as scary as you imagine.

The full details will be published in a paper on Tuesday morning (European time), so you have some time to act:

Our advice, which mirrors that of the researchers, is to immediately disable and/or uninstall tools that automatically decrypt PGP-encrypted email. Until the flaws described in the paper are more widely understood and fixed, users should arrange for the use of alternative end-to-end secure channels, such as Signal, and temporarily stop sending and especially reading PGP-encrypted email.
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Old 05-15-2018, 03:25 PM   #1428 (permalink)
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She's smokin' now....



There's been a somewhat continuous plume of steam over the last three days or so from the now-drained summit crater conduit; the one that used to hold the lava lake. The steady steam plume indicates that groundwater IS starting to interact with the lava, although luckily there haven't been any of those pressurized explosions that the Park Service is concerned could possibly happen. The steam plume has occasionally changed color for a few brief moments as rock-falls in the empty conduit cause some ash to blow out with the steam, but until now these events have been transient.

But starting this morning, the plume is loaded with ash, it's now a dark grey color, and as you can see in the webcam image there's actually enough ash in it for there to be some fallout downwind of the crater. Interesting.

Meanwhile over in Leilani Estates, fissure 20 opened overnight.
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Old 05-15-2018, 10:22 PM   #1429 (permalink)
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Quoting myself -
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Gmail is rolling out a big revamp of gmail. It includes something called confidential mode. In this mode, the receiver of the email gets a link to the actual message which can be set to expire or some other options.
...
As soon as I'm able to test it I'm making a new rule that whenever I receive a "confidential mode" email from gmail it gets deleted and a response is sent saying the message was dropped
Gmail rolled out the "feature" to me. Sieve is a small mail filtering language supported by Fastmail, Thunderbird, Roundcube and various linux implementations among others. It turns out to be very easy to do. Simply -

require "reject";
if exists "X-Gm-Locker" {
reject "Google confidential mode emails are automatically deleted at this email address.";
}
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Old 05-18-2018, 04:27 PM   #1430 (permalink)
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Live cam of fissure 17:


There's now 22 fissures.
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Old 05-18-2018, 10:12 PM   #1431 (permalink)
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Another live feed, cuz why not:

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Old 05-19-2018, 03:12 PM   #1432 (permalink)
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From last night:


Things have "broken loose" to an extent. The USGS said yesterday evening that samples it had taken and analyzed show that magma which has been draining from the summit and uprift areas has finally arrived and is erupting from the latest fissures. Up until now, the lava being erupted has been old stuff, left over from the last eruption in this area in 1955. It is thick and sticky and with few exceptions it didn't flow very far once it burst from the ground. That kind of slow-flowing lava, which consists of solid chunks of rock with glowing, more liquid areas between them, is called 'a'a. That's the Hawaiian language word for it, and is also the standard scientific name.

The new lava is hotter and thinner, and as you can see from the last few livestreams it flows much faster over the ground. This kind of lava is called pahoehoe (pronounce the E's), and it has already been problematic. Last night a flow of this lava from fissure 17 rapidly covered a major road which completely cut off access to a certain residential area, which officials are working to evacuate by helicopter.

A couple of nights ago there was a large ash explosion at the summit crater that prompted a fallout warning, and another apparently happened last night after dark. These are the kinds of steam-driven explosions that the USGS was worried about seeing after the level of the summit's (former) lava lake dropped below the water table. While lava filled the conduit up to the surface as previously, water in the surrounding rock was easily boiled away before it could interact with the lava directly. Now that the lava has dropped so far, this allows some ground water to seep through the sides of the conduit a ways above the top of the lava without completely boiling away, and as this water flows down and interacts with the lava it causes the constant steam plume and occasional explosions the summit is now experiencing.
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Old 05-19-2018, 03:47 PM   #1433 (permalink)
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A'a always struck me as being onomatopoetic; it sounds like the sound a person would make walking on it with inadequate footwear: "Aaa! Aaa! Aaaaaaaa!" After it has cooled, of course, it still has sharp edges everywhere.
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Old 05-19-2018, 04:07 PM   #1434 (permalink)
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Flash! A'a!
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Some days you herp a derp, sometimes the derp herps you.
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Old 05-19-2018, 09:57 PM   #1435 (permalink)
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Old Yesterday, 07:24 PM   #1436 (permalink)
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The topic of this Tweet thread is Incels. But it got so interestingly sciencey about reproductive systemry I'll put it here:

Twitter

Like, I had no idea that the human dick was designed in order to plunge out the sperm of the guy immediately before.
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Old Today, 12:22 AM   #1437 (permalink)
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Ewww
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Old Today, 12:25 AM   #1438 (permalink)
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Comcast website bug gives away wifi router passwords because naturally

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A bug in Comcast's website used to activate Xfinity routers can return sensitive information on the company's customers.

The website, used by customers to set up their home internet and cable service, can be tricked into displaying the home address where the router is located, as well as the Wi-Fi name and password.

Two security researchers, Karan Saini and Ryan Stevenson, discovered the bug.

Saini, who previously discovered an Uber two-factor bypass bug and a flaw in India's national biometric database, told ZDNet about the bug.

Only a customer account ID and that customer's house or apartment number is needed -- even though the web form asks for a full address. That information could be grabbed from a discarded bill or obtained from an email. In any case, a determined attacker could simply guess the house or apartment number.

ZDNet obtained permission from two Xfinity customers to check their information. We were able to obtain their full address and zip code -- which both customers confirmed.

The site returned the Wi-Fi name and password -- in plaintext -- used to connect to the network for one of the customers who uses an Xfinity router. The other customer was using his own router -- and the site didn't return the Wi-Fi network name or password.

The bug returns data even if the Xfinity Wi-Fi is already switched on.

Even when the Wi-Fi password changes, running the details again will return the new Wi-Fi password. There appears to be no way for customers to opt out when using Xfinity hardware.

Although it's not believed the sensitive data can be used to access the router's settings, an attacker could use the information to access the Wi-Fi network within its range. On the network, an attacker could read unencrypted traffic from other users on the network.

Comcast, after publication, removed the option from its website.
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