Last week we wrote about a lawsuit against Western Digital that alleged that the firm's solid state drive didn't live up to its marketing promises. More lawsuits have been filed against the company since. ArsTechnica: On Thursday, two more lawsuits were filed against Western Digital over its SanDisk Extreme series and My Passport portable SSDs. That brings the number of class-action complaints filed against Western Digital to three in two days. In May, Ars Technica reported about customer complaints that claimed SanDisk Extreme SSDs were abruptly wiping data and becoming unmountable. Ars senior editor Lee Hutchinson also experienced this problem with two Extreme SSDs. Western Digital, which owns SanDisk, released a firmware update in late May, saying that currently shipping products weren't impacted. But the company didn't mention customer complaints of lost data, only that drives could "unexpectedly disconnect from a computer."

Further, last week The Verge claimed a replacement drive it received after the firmware update still wiped its data and became unreadable, and there are some complaints on Reddit pointing to recent problems with Extreme drives. All three cases filed against Western Digital this week seek class-action certification (Ars was told it can take years for a judge to officially state certification and that cases may proceed with class-wide resolutions possibly occurring before official certification). Ian Sloss, one of the lawyers representing Matthew Perrin and Brian Bayerl in a complaint filed yesterday, told Ars he doesn't believe class-action certification will be a major barrier in a case "where there is a common defect in the firmware that is consistent in all devices." He added that defect cases are "ripe for class treatment."

"Italian producers of parmesan cheese have been fighting against imitations for years," writes the Wall Street Journal, adding "Their latest trick to beat counterfeiters is edible microchips.

"Now, makers of Parmigiano-Reggiano, as the original parmesan cheese is officially called, are slapping the microchips on their 90-pound cheese wheels as part of an endless cat-and-mouse game between makers of authentic and fake products." New methods to guarantee the origin of products are being used across the EU. Some wineries are putting serial numbers, invisible ink and holograms on their bottles. So-called DNA fingerprinting of milk bacteria pioneered in Switzerland, which isn't in the EU, is now being tested inside the bloc as a method for identifying cheese. QR codes are also proliferating, including on individual portions of pre-sliced Prosciutto di San Daniele, a raw ham similar to Prosciutto di Parma. A smartphone can be used to show information such as how long the prosciutto has been aged and when it was sliced... The new silicon chips, made by Chicago-based p-Chip, use blockchain technology to authenticate data that can trace the cheese as far back as the producer of the milk used.

The chips have been in advanced testing on more than 100,000 Parmigiano wheels for more than a year. The consortium of producers wants to be sure the chips can stand up to Parmigiano's aging requirement, which is a minimum of one year and can exceed three years for some varieties... The p-Chips can withstand extreme heat or cold, can be read through ice and can withstand years of storage in liquid nitrogen. They have outperformed RFID chips, which are larger, can be more difficult to attach to products, are more fragile and can't survive extreme temperatures, according to p-Chip Chief Technology Officer Bill Eibon. Parmigiano producers also use QR codes, but the codes are easily copied and degrade during the cheese's aging process.

A robot heats the Parmigiano wheel's casein label — a small plaque made of milk protein that is widely used in the cheese industry — and then inserts the chip on top. A hand-held reader can grab the data from the chips, which cost a few cents each and are similar to the ones that some people have inserted under the skin of their pets. The chips can't be read remotely. In lab tests, the chips sat for three weeks in a mock-up of stomach acid without leaking any dangerous material. Eibon went a step further, eating one without suffering any ill effects, but he isn't touting that lest p-Chip face accusations it is tracking people, something that isn't possible because the chips can't be read remotely and can't be read once they are ingested.

"We don't want to be known as the company accused of tracking people," said Eibon. "I ate one of the chips and nobody is tracking me, except my wife, and she uses a different method."
Merck KGaA will soon be using the same chips, the article points out, and the chips "are also being tested in the automotive industry to guarantee the authenticity of car parts.

"The chips could eventually be used on livestock, crops or medicine stored in liquid nitrogen."

Long-time Slashdot reader SpzToid shares a report from The Economist: What you notice first is how silent it is," says Kimmo Koski, the boss of the Finnish IT Centre for Science. Dr Koski is describing LUMI -- Finnish for "snow" -- the most powerful supercomputer in Europe, which sits 250km south of the Arctic Circle in the town of Kajaani in Finland. LUMI, which was inaugurated last year, is used for everything from climate modeling to searching for new drugs. It has tens of thousands of individual processors and is capable of performing up to 429 quadrillion calculations every second. That makes it the third-most-powerful supercomputer in the world. Powered by hydroelectricity, and with its waste heat used to help warm homes in Kajaani, it even boasts negative emissions of carbon dioxide. LUMI offers a glimpse of the future of high-performance computing (HPC), both on dedicated supercomputers and in the cloud infrastructure that runs much of the internet. Over the past decade the demand for HPC has boomed, driven by technologies like machine learning, genome sequencing and simulations of everything from stockmarkets and nuclear weapons to the weather. It is likely to carry on rising, for such applications will happily consume as much computing power as you can throw at them. Over the same period the amount of computing power required to train a cutting-edge AI model has been doubling every five months. All this has implications for the environment.

HPC -- and computing more generally -- is becoming a big user of energy. The International Energy Agency reckons data centers account for between 1.5% and 2% of global electricity consumption, roughly the same as the entire British economy. That is expected to rise to 4% by 2030. With its eye on government pledges to reduce greenhouse-gas emissions, the computing industry is trying to find ways to do more with less and boost the efficiency of its products. The work is happening at three levels: that of individual microchips; of the computers that are built from those chips; and the data centers that, in turn, house the computers. [...] The standard measure of a data centre's efficiency is the power usage effectiveness (pue), the ratio between the data centre's overall power consumption and how much of that is used to do useful work. According to the Uptime Institute, a firm of it advisers, a typical data centre has a pue of 1.58. That means that about two-thirds of its electricity goes to running its computers while a third goes to running the data centre itself, most of which will be consumed by its cooling systems. Clever design can push that number much lower.

Most existing data centers rely on air cooling. Liquid cooling offers better heat transfer, at the cost of extra engineering effort. Several startups even offer to submerge circuit boards entirely in specially designed liquid baths. Thanks in part to its use of liquid cooling, Frontier boasts a pue of 1.03. One reason lumi was built near the Arctic Circle was to take advantage of the cool sub-Arctic air. A neighboring computer, built in the same facility, makes use of that free cooling to reach a pue rating of just 1.02. That means 98% of the electricity that comes in gets turned into useful mathematics. Even the best commercial data centers fall short of such numbers. Google's, for instance, have an average pue value of 1.1. The latest numbers from the Uptime Institute, published in June, show that, after several years of steady improvement, global data-centre efficiency has been stagnant since 2018. The report notes that the U.S., Britain and the European Union, among others, are considering new rules that "could force data centers to become more efficient." Germany has proposed the Energy Efficiency Act that would mandate a minimum pue of 1.5 by 2027, and 1.3 by 2030.

Western Digital was sued on Tuesday on behalf of a California resident who claims the solid state drive he bought from the manufacturer was defective and that the storage slinger shipped kit that didn't live up to its marketing promises. The Register reports: The complaint [PDF], filed in federal court in San Jose, California, where the storage giant is based, alleges the Western Digital SanDisk 2TB Extreme Pro SSD purchased by plaintiff Nathan Krum in May for $180 failed because of an undisclosed flaw, which also affects SanDisk Extreme Pro, Extreme Portable, Extreme Pro Portable, and WD My Passport SSD models since January 2023, it's claimed. The complaint [PDF], filed in federal court in San Jose, California, where the storage giant is based, alleges the Western Digital SanDisk 2TB Extreme Pro SSD purchased by plaintiff Nathan Krum in May for $180 failed because of an undisclosed flaw, which also affects SanDisk Extreme Pro, Extreme Portable, Extreme Pro Portable, and WD My Passport SSD models since January 2023, it's claimed.

The complaint asserts Western Digital customers "have widely reported drive failures and data loss." Krum, in his filing, believes Western Digital is aware of the problem and not doing enough about it. "The SanDisk Extreme Pro SSD hard drives, which are also sold under the WD My Passport brand, have a firmware issue that causes them to disconnect or become unreadable by computers," he claimed, adding that his drive was among those that stopped working as expected.

It is alleged the drives can break down in various ways, including randomly disconnecting from their host, which could result in information not being saved correctly or file-system corruption. In any case, people find they can no longer access their stored documents, making the SSDs worthless and useless, it is claimed. [...] Chris Cantrell, an attorney at Doyle Lowther LLP who is representing the plaintiffs, told The Register it's not yet clear how many SanDisk SSDs experienced data loss though there are more than a few people who share his client's experience. "While Western Digital appears to have attempted to fix the issue with a firmware update, it does not appear to have fixed the issue," Cantrell added. "This is what prompted us to file this lawsuit on behalf of affected SanDisk SSD purchasers. We anticipate adding additional named plaintiffs from other states over the next few weeks." The complaint alleges breach of contract, violation of consumer protection law, and misleading advertising, among other claims, and seeks damages, legal costs, and other relief.

Bambu's X1C and P1P 3D printers started printing unattended, overnight, and without any additional user input, according to user reports from r/BambuLab and X. The Verge reports: Some woke up to failed prints. Some found a second copy of a previous print. And at least a few found their Bambu X1C or P1P had started smacking itself apart -- damaging components -- while trying to print a second copy atop the object they'd actually asked for. What happened? In an official blog post, Bambu says it's still investigating but suspects that a cloud outage is to blame. The company says its servers had two brief outages on Tuesday morning where the servers couldn't confirm that the printers had actually printed -- but instead of failing gracefully, they wound up sending the same print job again and again until it went through, Bambu's staff believes. "Simply explained, the print job sent to the printer before was trapped on the cloud and had a delayed start," writes Bambu.

When contacted by The Verge, Bambu would not go quite so far as to promise free repairs and replacements for all affected customers but says anyone who's suffered any damage should reach out to Bambu support ASAP. "For damage caused by this incident, we will offer the necessary solutions to our customers impacted by the Cloud Outage, in the form of part replacements or a printer replacement if the situation demands it," spokesperson Taylor Liu tells me.

HP all-in-one printer owners, upset that their devices wouldn't scan or fax when low on ink, were handed a partial win in a northern California court late last week after a judge denied HP's motion to dismiss their suit. From a report: The plaintiffs argued in their amended class action complaint that HP withheld vital information by including software in its all-in-one printer/scanner/fax machines that disabled non-printing functions when out of ink and not telling buyers that was the case. "It is well-documented that ink is not required in order to scan or to fax a document, and it is certainly possible to manufacture an All-in-One printer that scans or faxes when the device is out of ink," the plaintiffs argued in their complaint.

The amended complaint was filed in February this year after US federal Judge Beth Labson Freeman dismissed the suit on the grounds that it hadn't properly stated a claim. Armed with their amended complaint, lawyers for San Franciscan Gary Freund and Minneapolis resident Wayne McMath have succeeded at not only making relevant claims, but also surviving an attempt by HP to have the entire case dismissed for a second time. In the amended complaint, Freund and McMath's lawyers argue that HP's move to disable devices that were low on ink was intentional, citing HP's own comments from a support forum post in which an HP support agent told a user complaining of similar issues that their "HP printer is designed in such a way that with the empty cartridge or without the cartridge [the] printer will not function."

Saudi Arabia and the United Arab Emirates are buying up thousands of the high-performance Nvidia chips crucial for building artificial intelligence software, joining a global AI arms race that is squeezing the supply of Silicon Valley's hottest commodity. From a report: The Gulf powerhouses have publicly stated their goal of becoming leaders in AI as they pursue ambitious plans to turbocharge their economies. But the push has also raised concerns about potential misuse of the technology by the oil-rich states' autocratic leaders. According to people familiar with the moves, Saudi Arabia has bought at least 3,000 of Nvidia's H100 chips -- a $40,000 processor described by Nvidia chief Jensen Huang as "the world's first computer [chip] designed for generative AI" -- via the public research institution King Abdullah University of Science and Technology (Kaust).

Meanwhile, the UAE has also secured access to thousands of Nvidia chips and has already developed its own open-source large language model, known as Falcon, at the state-owned Technology Innovation Institute in Masdar City, Abu Dhabi. "The UAE has made a decision that it wants toâ...âown and control its own computational power and talent, have their own platforms and not be dependent on the Chinese or the Americans," said a person familiar with Abu Dhabi's thinking.

An anonymous reader shared this report from The New York Times: More than $1.7 trillion worldwide is expected to be invested in technologies such as wind, solar power, electric vehicles and batteries globally this year, according to the International Energy Agency, compared with just over $1 trillion in fossil fuels. That is by far the most ever spent on clean energy in a year. Those investments are driving explosive growth. China, which already leads the world in the sheer amount of electricity produced by wind and solar power, is expected to double its capacity by 2025, five years ahead of schedule. In Britain, roughly one-third of electricity is generated by wind, solar and hydropower. And in the United States, 23 percent of electricity is expected to come from renewable sources this year, up 10 percentage points from a decade ago... [F]rom Beijing to London, Tokyo to Washington, Oslo to Dubai, the energy transition is undeniably racing ahead...

[C]lean energy became cheap far faster than anyone expected. Since 2009, the cost of solar power has plunged by 83 percent, while the cost of producing wind power has fallen by more than half. The price of lithium-ion battery cells fell 97 percent over the past three decades. Today, solar and wind power are the least expensive new sources of electricity in many markets, generating 12 percent of global electricity and rising... The rapid drop in costs for solar energy, wind power and batteries can be traced to early government investment and steady improvements over time by hundreds of researchers, engineers and entrepreneurs around the world. "The world has produced nearly three billion solar panels at this point, and every one of those has been an opportunity for people to try to improve the process," said Gregory Nemet, a solar power expert at the University of Wisconsin-Madison. "And all of those incremental improvements add up to something very dramatic." An equally potent force, along with the technological advances, has been an influx of money — in particular, a gusher since 2020 of government subsidies...

In the United States, President Biden signed a trio of laws during his first two years in office that allocated unprecedented funds for clean energy: A $1 trillion bipartisan infrastructure law provided money to enhance the power grid, buy electric buses for schools and build a national network of electric vehicle chargers... Combined, the three laws have prompted companies to announce at least $230 billion in manufacturing investments so far... The U.S. solar industry installed a record 6.1 gigawatts of capacity in the first quarter of 2023, a 47 percent increase over the same period last year. And those low costs have led many of the United States' biggest corporations, such as Alphabet, Amazon and General Motors, to purchase large amounts of wind and solar power...

An anonymous reader shared this report from CNBC: In an unmarked office building in Austin, Texas, two small rooms contain a handful of Amazon employees designing two types of microchips for training and accelerating generative AI. These custom chips, Inferentia and Trainium, offer AWS customers an alternative to training their large language models on Nvidia GPUs, which have been getting difficult and expensive to procure. "The entire world would like more chips for doing generative AI, whether that's GPUs or whether that's Amazon's own chips that we're designing," Amazon Web Services CEO Adam Selipsky told CNBC in an finterview in June. "I think that we're in a better position than anybody else on Earth to supply the capacity that our customers collectively are going to want...."

In the long run, said Chirag Dekate, VP analyst at Gartner, Amazon's custom silicon could give it an edge in generative AI...
With millions of customers, Amazon's AWS cloud service "still accounted for 70% of Amazon's overall $7.7 billion operating profit in the second quarter," CNBC notes. But does that give them a competitive advantage?

A technology VP for the service tells them "It's a question of velocity. How quickly can these companies move to develop these generative AI applications is driven by starting first on the data they have in AWS and using compute and machine learning tools that we provide." In June, AWS announced a $100 million generative AI innovation "center."

"We have so many customers who are saying, 'I want to do generative AI,' but they don't necessarily know what that means for them in the context of their own businesses. And so we're going to bring in solutions architects and engineers and strategists and data scientists to work with them one on one," AWS CEO Selipsky said... For now, Amazon is only accelerating its push into generative AI, telling CNBC that "over 100,000" customers are using machine learning on AWS today. Although that's a small percentage of AWS's millions of customers, analysts say that could change.

"What we are not seeing is enterprises saying, 'Oh, wait a minute, Microsoft is so ahead in generative AI, let's just go out and let's switch our infrastructure strategies, migrate everything to Microsoft.' Dekate said. "If you're already an Amazon customer, chances are you're likely going to explore Amazon ecosystems quite extensively."

By 2035 America needs a 43% increase in its power-transmitting capacity, according to an analysis by the REPEAT project. But NPR reports there's another way to quickly improve capacity without building new transmission lines: That's where the laser sensors come in, says Jon Marmillo, co-founder of LineVision, the company that makes them. Sensors can help utilities get real-time data on their power lines, which can allow them to send more renewable electricity through the wires. This tech is part of a suite of innovations that could help the U.S. increase its grid capacity faster and cheaper than building new transmission lines...

At any given moment, utilities typically know how much power is going through their lines. But they aren't required to know the real time conditions of those lines, like the wind speed or how hot the line is. Without that data, utilities have to use conservative standards for how much power can safely flow, says Jake Gentle, senior program manager for infrastructure security at Idaho National Laboratory. But when sensors gather information from the wires — about wind, temperature, and wire sag — that data allows utilities to go beyond their conservative standards and safely put more electricity through the wires... With this tech, called "dynamic line rating", utilities are able to increase the efficiency of their lines — sometimes as much as 40%, says Gentle.
One Pittsburgh company using similar technology told NPR that "we found an average of 25% additional available capacity on transmission lines that were equipped with the sensors."

Ars Technica reports that Microsoft "disclosed 15 high-severity vulnerabilities in a widely used collection of tools used to program operational devices inside industrial facilities" (like plants for power generation, factory automation, energy automation, and process automation).

On Friday Microsoft "warned that while exploiting the code-execution and denial-of-service vulnerabilities was difficult, it enabled threat actors to 'inflict great damage on targets.'" The vulnerabilities affect the CODESYS V3 software development kit. Developers inside companies such as Schneider Electric and WAGO use the platform-independent tools to develop programmable logic controllers, the toaster-sized devices that open and close valves, turn rotors, and control various other physical devices in industrial facilities worldwide... "A denial-of-service attack against a device using a vulnerable version of CODESYS could enable threat actors to shut down a power plant, while remote code execution could create a backdoor for devices and let attackers tamper with operations, cause a PLC to run in an unusual way, or steal critical information," Microsoft researchers wrote.

Friday's advisory went on to say: "[...] While exploiting the discovered vulnerabilities requires deep knowledge of the proprietary protocol of CODESYS V3 as well as user authentication (and additional permissions are required for an account to have control of the PLC), a successful attack has the potential to inflict great damage on targets. Threat actors could launch a denial-of-service attack against a device using a vulnerable version of CODESYS to shut down industrial operations or exploit the remote code execution vulnerabilities to deploy a backdoor to steal sensitive data, tamper with operations, or force a PLC to operate in a dangerous way."

Microsoft privately notified Codesys of the vulnerabilities in September, and the company has since released patches that fix the vulnerabilities. It's likely that by now, many vendors using the SDK have installed updates. Any who haven't should make it a priority.
"With the likelihood that the 15 vulnerabilities are patched in most previously vulnerable production environments, the dire consequences Microsoft is warning of appear unlikely," the article notes.

A malware/senior vulnerability analyst at industrial control security firm Dragos also pointed out that CODESYS "isn't widely used in power generation so much as discrete manufacturing and other types of process control. So that in itself should allay some concern when it comes to the potential to 'shut down a power plant'." (And in addition, "industrial systems are extremely complex, and being able to access one part doesn't necessarily mean the whole thing will come crashing down.")

The Verge writes that "LK-99 hasn't turned out to be the miraculous superconductor some people initially claimed it was..." [T]he results so far indicate that LK-99 is not a superconductor, at room temperature or otherwise. A slew of research groups have released studies that counter claims originally made about LK-99. "With a great deal of sadness, we now believe that the game is over. LK99 is NOT a superconductor, not even at room temperatures (or at very low temperatures). It is a very highly resistive poor quality material. Period. No point in fighting with the truth," the University of Maryland's Condensed Matter Theory Center (CMTC) posted on August 7th... [The last words of their tweet? "Data have spoken."]

Labs hurriedly published their own results on ArXiv, the same server for preprints (papers that haven't undergone peer review) where the original papers on LK-99 first appeared. Now, a body of evidence has piled up that disproves claims about LK-99. "There is no sign of superconductivity in LK-99 at room temperature," says one preprint from the CSIR-National Physical Laboratory in India. (That was one of the papers cited by the University of Maryland's Condensed Matter Theory Center this week when it posted that "the game is over....") [H]opes that levitation meant that LK-99 is a superconductor were dashed this week after another preprint posed another explanation for why the material might float. The International Center for Quantum Materials in China found evidence that the material is ferromagnetic. That means it can be magnetized and then attracted or repelled by other magnetic materials (iron, for example, is ferromagnetic)...

[T]here are already well over a dozen papers on ArXiv casting doubt on LK-99. "There may be room temperature superconductors to find, but this does not seem to be one," Chris Grovenor, professor of materials at the University of Oxford and director of the Centre for Applied Superconductivity, tells The Verge in an email.
The Washington Post reports that one of physicists who co-authored the discovery paper "countered in an email that other research groups' failure to replicate their results are probably because they lack 'know how' in developing the sample the same way."

Last year, Queens resident David Leacraft filed a lawsuit against Canon claiming that his Canon Pixma All-in-One printer won't scan documents unless it has ink. According to The Verge's Sean Hollister, it has quietly ended in a private settlement rather than becoming a big class-action. From the report: I just checked, and a judge already dismissed David Leacraft's lawsuit in November, without (PDF) Canon ever being forced to show what happens when you try to scan without a full ink cartridge. (Numerous Canon customer support reps wrote that it simply doesn't work.) Here's the good news: HP, an even larger and more shameless manufacturer of printers, is still possibly facing down a class-action suit for the same practice.

As Reuters reports, a judge has refused to dismiss a lawsuit by Gary Freund and Wayne McMath that alleges many HP printers won't scan or fax documents when their ink cartridges report that they've run low. Among other things, HP tried to suggest that Freund couldn't rely on the word of one of HP's own customer support reps as evidence that HP knew about the limitation. But a judge decided it was at least enough to be worth exploring in court. "Plaintiffs have plausibly alleged that HP had a duty to disclose and had knowledge of the alleged defect," wrote Judge Beth Labson Freeman, in the order denying almost all of HP's current attempts to dismiss the suit.

Interestingly, neither Canon nor HP spent any time trying to argue their printers do scan when they're low on ink in the lawsuit responses I've read. Perhaps they can't deny it? Epson, meanwhile, has an entire FAQ dedicated to reassuring customers that it hasn't pulled that trick since 2008. (Don't worry, Epson has other forms of printer enshittification.) HP does seem to be covering its rear in one way. The company's original description on Amazon for the Envy 6455e claimed that you could scan things "whenever". But when I went back now to check the same product page, it now reads differently: HP no longer claims this printer can scan "whenever" you want it to. Now, we wait to see whether the case can clear the bars needed to potentially become a big class-action trial, or whether it similarly settles like Canon, or any number of other outcomes.

According to the Financial Times, China's internet giants have ordered more than $5 billion worth of high-performance Nvidia chips for building generative AI systems. Reuters reports: Baidu, TikTok-owner ByteDance, Tencent and Alibaba have made orders worth $1 billion to acquire about 100,000 A800 processors from the U.S. chipmaker to be delivered this year, the FT reported, citing multiple people familiar with the matter. The Chinese groups had also purchased a further $4 billion worth of graphics processing units to be delivered in 2024, according to the report.

The Biden administration last October issued a sweeping set of rules designed to freeze China's semiconductor industry in place while the U.S. pours billions of dollars in subsidies into its chip industry. Nvidia offers the A800 processor in China to meet export control rules after U.S. officials asked the company to stop exporting its two top computing chips to the country for AI-related work. Nvidia's finance chief said in June that restrictions on exports of AI chips to China "would result in a permanent loss of opportunities for the U.S. industry", though the company expected no immediate material impact.

SanDisk's silence this week has been deafening. Its portable SSDs are being lambasted as users and tech publications call for them to be pulled. From a report: The recent scrutiny of the drives follows problems from this spring when users, including an Ars Technica staff member, saw Extreme-series portable SSDs wipe data and become unmountable. A firmware update was supposed to fix things, but new complaints dispute its effectiveness. SanDisk has stayed mum on recent complaints and hasn't explained what caused the problems.

In May, Ars Technica reported on SanDisk Extreme V2 and Extreme Pro V2 SSDs wiping data before often becoming unreadable to the user's system. At least four months of complaints had piled up by then, including on SanDisk's forums and all over Reddit. Even Ars' Lee Hutchinson fell victim to the faulty drives. Two whole Extreme Pros died on him. Both times they filled about 50 percent and then showed a bunch of read and write errors. Upon disconnecting and reconnecting, the drive was unformatted and wiped, and he could not fix either drive by wiping and reformatting. When Ars reached out to SanDisk about the problem in May, it didn't answer most of our questions about why these problems happened (and, oddly, excluded certain models we saw affected when naming which models were affected).

A recent comprehensive study reveals that automated bots are substantially more efficient than humans at cracking Captcha tests, a widely used security measure on over 100 popular websites. The Independent reports: In the study, scientists assessed 200 of the most popular websites and found 120 still used Captcha. They took the help of 1,000 participants online from diverse backgrounds -- varying in location, age, sex and educational level -- to take 10 captcha tests on these sites and gauge their difficulty levels. Researchers found many bots described in scientific journals could beat humans at these tests in both speed and accuracy.

Some Captcha tests took human participants between nine and 15 seconds to solve, with an accuracy of about 50 to 84 per cent, while it took the bots less than a second to crack them, with up to near perfection. "The bots' accuracy ranges from 85-100 per cent, with the majority above 96 per cent. This substantially exceeds the human accuracy range we observed (50-85 per cent)," scientists wrote in the study. They also found that the bots' solving times are "significantly lower" or nearly the same as humans in almost all cases.

An anonymous reader quotes a report from Phoronix: This Patch Tuesday brings a new and potentially painful processor speculative execution vulnerability... Downfall, or as Intel prefers to call it is GDS: Gather Data Sampling. GDS/Downfall affects the gather instruction with AVX2 and AVX-512 enabled processors. At least the latest-generation Intel CPUs are not affected but Tigerlake / Ice Lake back to Skylake is confirmed to be impacted. There is microcode mitigation available but it will be costly for AVX2/AVX-512 workloads with GATHER instructions in hot code-paths and thus widespread software exposure particularly for HPC and other compute-intensive workloads that have relied on AVX2/AVX-512 for better performance.

Downfall is characterized as a vulnerability due to a memory optimization feature that unintentionally reveals internal hardware registers to software. With Downfall, untrusted software can access data stored by other programs that typically should be off-limits: the AVX GATHER instruction can leak the contents of the internal vector register file during speculative execution. Downfall was discovered by security researcher Daniel Moghimi of Google. Moghimi has written demo code for Downfall to show 128-bit and 256-bit AES keys being stolen from other users on the local system as well as the ability to steal arbitrary data from the Linux kernel. Skylake processors are confirmed to be affected through Tiger Lake on the client side or Xeon Scalable Ice Lake on the server side. At least the latest Intel Alder Lake / Raptor Lake and Intel Xeon Scalable Sapphire Rapids are not vulnerable to Downfall. But for all the affected generations, CPU microcode is being released today to address this issue.

Intel acknowledges that their microcode mitigation for Downfall will have the potential for impacting performance where gather instructions are in an applications' hot-path. In particular given the AVX2/AVX-512 impact with vectorization-heavy workloads, HPC workloads in particular are likely to be most impacted but we've also seen a lot of AVX use by video encoding/transcoding, AI, and other areas. Intel has not relayed any estimated performance impact claims from this mitigation. Well, to the press. To other partners Intel has reportedly communicated a performance impact up to 50%. That is for workloads with heavy gather instruction use as part of AVX2/AVX-512. Intel is being quite pro-active in letting customers know they can disable the microcode change if they feel they are not to be impacted by Downfall. Intel also believes pulling off a Downfall attack in the real-world would be a very difficult undertaking. However, those matters are subject to debate. Intel's official security disclosure is available here. The Downfall website is downfall.page.

Long-time Slashdot reader SonicSpike shares a report from NBC News: A divided Supreme Court on Tuesday allowed the Biden administration to enforce regulations aimed at clamping down on so-called ghost guns -- firearm-making kits available online that people can assemble at home. The court, which has a 6-3 conservative majority, in a brief order (PDF) put on hold a July 5 ruling by a federal judge in Texas that blocked the regulations nationwide. The vote was 5-4, with conservatives Chief Justice John Roberts and Justice Amy Coney Barrett joining the three liberal justices in the majority.

The federal Bureau of Alcohol, Tobacco, Firearms and Explosives, commonly known as ATF, issued the regulations last year to tackle what it claims has been an abrupt increase in the availability of ghost guns. The guns are difficult for law enforcement to trace, with the administration calling them a major threat to public safety. The rule clarified that ghost guns fit within the definition of 'firearm' under federal law, meaning that the government has the power to regulate them in the same way it regulates firearms manufactured and sold through the traditional process. The regulations require manufacturers and sellers of the kits to obtain licenses, mark the products with serial numbers, conduct background checks and maintain records.

Soon, all GM EV's on the Ultium platform will come equipped with bidirectional charging capabilities. Electrek reports: According to a release from GM this morning, the automaker has decided to roll out V2H capabilities to all of its incoming EV models, in addition to those already promised. [...] According to GM, all new EVs based upon the Ultium platform will feature bi-directional charging by model year 2026, so expect additional models beyond those above to also come equipped with the ability to power your home.

GM states its expanded V2H access will be supported by the rollout of the Ultium Home bundles previously announced, although we still do not know how much this technology is going to cost homeowners. GM says that additional details of expanded V2H technology and the specific timings of its rollout to the models mentioned above will be revealed at a later date. In the meantime, check out GM's latest sizzle reel showing off some of the incoming capabilities of its Ultium EVs, including a shadowy peek at the aforementioned Escalade IQ.

TSMC is committing $3.8 billion to establish its first European factory in Germany, benefiting from significant state support for the $11 billion project as Europe aims to shorten supply chains. Reuters reports: The plant, which will be TSMC's third outside of traditional manufacturing bases Taiwan and China, is central to Berlin's ambition to foster the domestic semiconductor industry its car industry will need to remain globally competitive. Germany, which has been courting the world's largest contract chipmaker since 2021, will contribute up to 5 billion euros to the factory in Dresden, capital of the eastern state of Saxony, German officials said.

"Germany is now probably becoming the major location for semiconductor production in Europe," German Chancellor Olaf Scholz said, less than two months after Intel announced a 30 billion euro plan to build two chip-making plants in the country. "That is important for the resilience of production structures around the world, but it is also important for the future viability of our European continent, and it is of course particularly important for the future viability of Germany."

TSMC said it would invest up to 3.499 billion euros into a subsidiary, European Semiconductor Manufacturing Company (ESMC), of which it will own 70%. Germany's Bosch and Infineon and the Netherlands' NXP (NXPI.O) will each own 10% of the plant, which will make up to 40,000 wafers a month for cars and industrial and home products when it opens in 2017. The factory will cost around 10 billion euros in total.