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Reçu aujourd’hui — 19 octobre 2025Actualités numériques

Are Supershear Earthquakes Even More Dangerous Than We Thought?

19 octobre 2025 à 15:34
Long-time Slashdot reader Bruce66423 shared this article from the Los Angeles Times: Scientists have increasingly observed how the rupturing of a fault during an earthquake can be even faster than the speed of another type of damaging seismic wave, theoretically generating energy on the level of a sonic boom. These shock waves — created during "supershear" earthquakes — can worsen how bad the ground shakes both side to side and up and down along an affected fault area, scientists at USC, Caltech and the University of Illinois Urbana-Champaign wrote in a recent opinion article for the journal Seismological Research Letters. Although not everyone agrees that supershear earthquakes are inherently more destructive than other types, the potential implications are massive and need to be accounted for in seismic forecasts, the scientists contend... In just the last 15 years, 14 of 39 large strike-slip earthquakes have exhibited features of supershear ruptures, the opinion article said.... In California, supershear earthquakes would be expected on the straightest of "strike-slip" faults — in which one block of earth slides past another — like the San Andreas... There are a number of communities directly on top of the San Andreas fault. Among them are Coachella, Indio, Cathedral City, Palm Springs, Desert Hot Springs, Banning, Yucaipa, Highland, San Bernardino, Wrightwood, Palmdale, Gorman, Frazier Park, San Juan Bautista, Palo Alto, Portola Valley, Woodside, San Bruno, South San Francisco, Pacifica, Daly City and Bodega Bay. One earthquake scientist suggests building codes need to be more strict, according to the article. But it also cites a U.S. Geological Survey research geophysicist who isn't convinced by the new opinion article. "I don't think we know yet whether supershear ruptures really are more destructive."

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FSF Reminds Consumers That Truly Free OS's Exist

19 octobre 2025 à 14:34
"Microsoft does everything in its power to keep Windows users under its control," warns the Free Software Foundation in a new blog post this week. They argue that the lack of freedom that comes with proprietary code "forces users to surrender to decisions made by Microsoft to maximize its profits and further lock users into its product ecosystem" — describing both the problem and one possible solution: [IT management company Lansweeper] found that of the 30 million enterprise systems they manage, over 40% are incompatible with Windows 11. This is due to the hardware requirements like Treacherous Platform Module version 2.0 — a proprietary chip that uses cryptography that users can't influence or audit to restrict their control over the system. The end of Windows 10 support is the perfect opportunity to break free from this cycle and switch to GNU/Linux operating system (GNU/Linux OS), a system that respects your freedom... The endless, freedom-restricting cycle of planned obsolescence is not inevitable. Instead of paying Microsoft for continued updates or buying new hardware, Windows users left behind by Microsoft should install GNU/Linux. Free Software Foundation certified GNU/Linux distributions respect the user's freedom to run their computer as they wish, to study and modify its source code, and to redistribute copies. They don't require update contracts, often run faster on older hardware, and, most importantly, put you in control. "If you're already a GNU/Linux user, you have an important role to play. Help your friends and family make the switch by sharing your knowledge, help them install a free-as-in-freedom OS. Show them what it means to have real control over their computing!"

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Linux 6.18-rc2 Will Make Sure To Wipe Stale Information About AMD System Reboots

19 octobre 2025 à 13:00
Linux 6.16 introduced the ability to report the cause of AMD system resets/reboots thanks to specialized information available on AMD Zen platforms for indicating the detected cause of previous resets. This is a handy addition and the information is automatically reported to the kernel log on the next system boot, but in some instances that information could be stale/inaccurate. Today's Linux 6.18-rc2 will fix that...

Les prix des CPU AMD et Intel semaine 42-2025 : Raptor Lake-S en hausse ?

19 octobre 2025 à 12:54

Pour les prix des CPU cette semaine, on note d'abord la hausse de deux références Raptor Lake Refresh avec le Core i5 14600K qui prend 25 euros et le Core i7 14700K qui fait + 13 euros. Le Core i9 14900K baisse un peu, mais de juste 2 euros, cependant, il est au moins cher et chez notre partenaire 1FODISCOUNT en plus. Ensuite, nous avons le Core Ultra 9 285K qui perd 5 euros par rapport à la semaine dernière. Pour les bleus, c'est timide cette semaine. […]

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Les montages du dimanche, Saison 2 : PS5 Pro par Modding Cafe

19 octobre 2025 à 12:36

Et c'est reparti pour une deuxième saison de montage et de watercooling en tout genre. Comme l'année dernière, nous ne parlons pas forcément de mode, mais surtout de beaux montages. Cette année, nous n'en ferons plus qu'un par semaine, le rythme fut parfois délicat à tenir. Comme toujours, n'hésitez pas à envoyer vos montages à Lucas. Ce dimanche, nous vous proposons de découvrir la PS5 Pro par Modding Cafe, un mod qui intègre un ordinateur et une Sony Playstation Pro 5 : […]

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Extortion and Ransomware Drive Over Half of Cyberattacks — Sometimes Using AI, Microsoft Finds

19 octobre 2025 à 11:34
Microsoft said in a blog post this week that "over half of cyberattacks with known motives were driven by extortion or ransomware... while attacks focused solely on espionage made up just 4%." And Microsoft's annual digital threats report found operations expanding even more through AI, with cybercriminals "accelerating malware development and creating more realistic synthetic content, enhancing the efficiency of activities such as phishing and ransomware attacks." [L]egacy security measures are no longer enough; we need modern defenses leveraging AI and strong collaboration across industries and governments to keep pace with the threat... Over the past year, both attackers and defenders harnessed the power of generative AI. Threat actors are using AI to boost their attacks by automating phishing, scaling social engineering, creating synthetic media, finding vulnerabilities faster, and creating malware that can adapt itself... For defenders, AI is also proving to be a valuable tool. Microsoft, for example, uses AI to spot threats, close detection gaps, catch phishing attempts, and protect vulnerable users. As both the risks and opportunities of AI rapidly evolve, organizations must prioritize securing their AI tools and training their teams... Amid the growing sophistication of cyber threats, one statistic stands out: more than 97% of identity attacks are password attacks. In the first half of 2025 alone, identity-based attacks surged by 32%. That means the vast majority of malicious sign-in attempts an organization might receive are via large-scale password guessing attempts. Attackers get usernames and passwords ("credentials") for these bulk attacks largely from credential leaks. However, credential leaks aren't the only place where attackers can obtain credentials. This year, we saw a surge in the use of infostealer malware by cybercriminals... Luckily, the solution to identity compromise is simple. The implementation of phishing-resistant multifactor authentication (MFA) can stop over 99% of this type of attack even if the attacker has the correct username and password combination. "Security is not only a technical challenge but a governance imperative..." Microsoft adds in their blog post. "Governments must build frameworks that signal credible and proportionate consequences for malicious activity that violates international rules." (The report also found that America is the #1 most-targeted country — and that many U.S. companies have outdated cyber defenses.) But while "most of the immediate attacks organizations face today come from opportunistic criminals looking to make a profit," Microsoft writes that nation-state threats "remain a serious and persistent threat." More details from the Associated Press: Russia, China, Iran and North Korea have sharply increased their use of artificial intelligence to deceive people online and mount cyberattacks against the United States, according to new research from Microsoft. This July, the company identified more than 200 instances of foreign adversaries using AI to create fake content online, more than double the number from July 2024 and more than ten times the number seen in 2023. Examples of foreign espionage cited by the article: China is continuing its broad push across industries to conduct espionage and steal sensitive data... Iran is going after a wider range of targets than ever before, from the Middle East to North America, as part of broadening espionage operations.. "[O]utside of Ukraine, the top ten countries most affected by Russian cyber activity all belong to the North Atlantic Treaty Organization (NATO) — a 25% increase compared to last year." North Korea remains focused on revenue generation and espionage... There was one especially worrying finding. The report found that critical public services are often targeted, partly because their tight budgets limit their incident response capabilities, "often resulting in outdated software.... Ransomware actors in particular focus on these critical sectors because of the targets' limited options. For example, a hospital must quickly resolve its encrypted systems, or patients could die, potentially leaving no other recourse but to pay."

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GCC Front-End Patches Updated For Algol 68 Programming Language

19 octobre 2025 à 10:28
At the start of the calendar year there was a proposal for a new GCC front-end for the Algol 68 programming language. GCC developers deferred merging Algol 68 support into GCC for this rarely talked about vintage programming language. But as talked about back at the GNU Tools Cauldron 2025, the developer is still working on the support. Sure enough, this week brought a new version of this GCC front-end...

Multi-Kernel Architecture Patches Updated For The Linux Kernel

19 octobre 2025 à 10:10
Posted to the Linux kernel mailing list one month ago were patches for a multi-kernel architecture design to allow multiple independent kernel instances to co-exist on the same single physical machine. This could let some CPU cores be running real-time "RT" kernels or other non-traditional uses between CPU cores. It wasn't clear how far the multi-kernel patches would get especially with some initial negative views toward it and Bytedance separately proposing "Parker" for multi-kernel usage just days later. In any event, today a second version of the multi-kernel Linux patches were posted...

New Data Shows Record CO2 Levels in 2024. Are Carbon Sinks Failing?

19 octobre 2025 à 07:34
The Guardian reports that atmospheric carbon dioxide "soared by a record amount in 2024 to hit another high, UN data shows." But what's more troubling is why: Several factors contributed to the leap in CO2, including another year of unrelenting fossil fuel burning despite a pledge by the world's countries in 2023 to "transition away" from coal, oil and gas. Another factor was an upsurge in wildfires in conditions made hotter and drier by global heating. Wildfire emissions in the Americas reached historic levels in 2024, which was the hottest year yet recorded. However, scientists are concerned about a third factor: the possibility that the planet's carbon sinks are beginning to fail. About half of all CO2 emissions every year are taken back out of the atmosphere by being dissolved in the ocean or being sucked up by growing trees and plants. But the oceans are getting hotter and can therefore absorb less CO2 while on land hotter and drier conditions and more wildfires mean less plant growth... Atmospheric concentrations of methane and nitrous oxide — the second and third most important greenhouse gases related to human activities — also rose to record levels in 2024. About 40% of methane emissions come from natural sources. But scientists are concerned that global heating is leading to more methane production in wetlands, another potential feedback loop. Thanks to long-time Slashdot reader mspohr for sharing the article.

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OpenAI Cofounder Builds New Open Source LLM 'Nanochat' - and Doesn't Use Vibe Coding

19 octobre 2025 à 03:34
An anonymous reader shared this report from Gizmodo: It's been over a year since OpenAI cofounder Andrej Karpathy exited the company. In the time since he's been gone, he coined and popularized the term "vibe coding" to describe the practice of farming out coding projects to AI tools. But earlier this week, when he released his own open source model called nanochat, he admitted that he wrote the whole thing by hand, vibes be damned. Nanochat, according to Karpathy, is a "minimal, from scratch, full-stack training/inference pipeline" that is designed to let anyone build a large language model with a ChatGPT-style chatbot interface in a matter of hours and for as little as $100. Karpathy said the project contains about 8,000 lines of "quite clean code," which he wrote by hand — not necessarily by choice, but because he found AI tools couldn't do what he needed. "It's basically entirely hand-written (with tab autocomplete)," he wrote. "I tried to use claude/codex agents a few times but they just didn't work well enough at all and net unhelpful."

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Repair Plan Underway to Restore Power at Ukrainian Nuclear Plant

19 octobre 2025 à 01:34
Repair Plan Underway to Restore Power at Ukrainian Nuclear Plant The Associated Press reports: Work has begun to repair the damaged power supply to Ukraine's Zaporizhzhia nuclear power plant, the head of the U.N.'s nuclear watchdog said Saturday. The repairs are hoped to end a precarious four-week outage that saw it dependent on backup generators. Russian and Ukrainian forces established special ceasefire zones for repairs to be safely carried out, said the head of the International Atomic Energy Agency, Rafael Grossi... "Both sides engaged constructively with the IAEA to enable the complex repair plan to proceed," Grossi said in a statement... The Zaporizhzhia plant, Europe's largest nuclear power station, has been operating on diesel back-up generators since Sept. 23 when its last remaining external power line was severed in attacks that Russia and Ukraine each blamed on the other. The plant is in an area under Russian control since early in Moscow's full-scale invasion of Ukraine and is not in service, but it needs reliable power to cool its six shutdown reactors and spent fuel, to avoid any catastrophic nuclear incidents.

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Reçu hier — 18 octobre 2025Actualités numériques

Protein Powders and Shakes Contain High Levels of Lead

18 octobre 2025 à 22:48
Long-time Slashdot reader fjo3 shares an announcement from the U.S.-based nonprofit Consumer Reports: Protein powders still carry troubling levels of toxic heavy metals, according to a new Consumer Reports (CR) investigation. Our latest tests of 23 protein powders and ready-to-drink shakes from popular brands found that heavy metal contamination has become even more common among protein products, raising concerns that the risks are growing right alongside the industry itself. For more than two-thirds of the products we analyzed, a single serving contained more lead than CR's food safety experts say is safe to consume in a day — some by more than 10 times... [I]n addition to the average level of lead being higher than what we found 15 years ago, there were also fewer products with undetectable amounts of it. The outliers also packed a heavier punch. Naked Nutrition's Vegan Mass Gainer powder, the product with the highest lead levels, had nearly twice as much lead per serving as the worst product we analyzed in 2010. Nearly all the plant-based products CR tested had elevated lead levels, but some were particularly concerning. Two had so much lead that CR's experts caution against using them at all... Dairy-based protein powders and shakes generally had the lowest amounts of lead, but half of the products we tested still had high enough levels of contamination that CR's experts advise against daily use... Unlike prescription and over-the-counter drugs, the Food and Drug Administration doesn't review, approve, or test supplements like protein powders before they are sold. Federal regulations also don't generally require supplement makers to prove their products are safe, and there are no federal limits for the amount of heavy metals they can contain. The article acknowledges that "Many of these powders are fine to have occasionally, and even those with the highest lead levels are far below the concentration needed to cause immediate harm. That said, because most people don't actually need protein supplements — nutrition experts say the average American already gets plenty — it makes sense to ask whether these products are worth the added exposure."

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You Only Need $750 to Pilfer Unencrypted Data From Satellites, Researchers Say

18 octobre 2025 à 21:48
"A new study published on Monday found that communications from cellphone carriers, retailers, banks, and even militaries are being broadcast unencrypted through geostationary satellites..." reports Gizmodo. "The team obtained unencrypted internet communications from U.S. military sea vessels and even communications regarding narcotics trafficking from Mexican military and law enforcement." Researchers from the University of California, San Diego (UCSD) and the University of Maryland scanned 39 of these satellites from a rooftop in Southern California over three years. They found that roughly half of the signals they analyzed were transmitting unencrypted data, potentially exposing everything from phone calls and military logistics to a retail chain's inventory. "There is a clear mismatch between how satellite customers expect data to be secured and how it is secured in practice," the researchers wrote in their paper titled "Don't Look Up: There Are Sensitive Internal Links in the Clear on GEO Satellites...." "They assumed that no one was ever going to check and scan all these satellites and see what was out there. That was their method of security," Aaron Schulman, a UCSD professor and co-lead of the study, told Wired.... Even more surprisingly, the researchers didn't need any fancy spy gear to collect this data. Their setup used only off-the-shelf hardware, including a $185 satellite dish, a $140 roof mount with a $195 motor, and a $230 tuner card. Altogether, the system cost roughly $750 and was installed on a university building in La Jolla, San Diego. With their simple setup, the researchers were able to collect a wide range of communication data, including phone calls, texts, in-flight Wi-Fi data from airline passengers, and signals from electric utilities. They even obtained U.S. and Mexican military and law enforcement communications, as well as ATM transactions and corporate communications... When it came to telecoms, specifically, the team collected phone numbers, calls, and texts from customers of T-Mobile, AT&T Mexico, and Telmex... It only took the team nine hours to collect the phone numbers of over 2,700 T-Mobile users, along with some of their calls and text messages. T-Mobile told Gizmodo the lack of encryption was "a vendor's technical misconfiguration" affecting "a limited number of cell sites" and was "not network-wide... [W]e implemented nationwide Session Initiation Protocol (SIP) encryption for all customers to further protect signaling traffic as it travels between mobile handsets and the network core, including call set up, numbers dialed and text message content. We appreciate our collaboration with the security research community, whose work helps reinforce our ongoing commitment to protecting customer data and enhances security across the industry." Indeed, the researchers write that "Each time we discovered sensitive information in our data, we went through considerable effort to determine the responsible party, establish contact, and disclose the vulnerability. In several cases, the responsible party told us that they had deployed a remedy. For the following parties, we re-scanned with their permission and were able to verify a remedy had been deployed: T-Mobile, WalMart, and KPU." The researchers acknowledge that exposure "was limited to a relatively small number of cell towers in specific remote areas."

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New Code Merged For Linux 6.18 To Address Linus Torvalds' Rust Formatting Critique

18 octobre 2025 à 20:43
Back during the Linux 6.18 merge window Linus Torvalds commented on "mindless and completely crazy Rust format checking" and that the RUst format checking "is all bass-ackwards garbage" with condensing multi-line import statements into single lines. Merged minutes ago to Linux Git ahead of tomorrow's Linux 6.18-rc2 are fixes to the Rust format checking and updated guidelines to address Torvalds' criticism...

Lian Li LANCOOL 217 INF : une double personnalité saisissante !

Au mois de mai 2025, nous vous présentions un nouveau boitier chez Lian Li au style intéressant : le LANCOOL 217. Mêlant du mesh métallique et des lames de bois dans un style sobre et assez classe, le boitier avait d'ailleurs plutôt séduit sur les réseaux sociaux d'après ce que nous avions pu consta...

Should Scientists Be Allowed to Edit Genes of Wild Animals? Top Conservation Groups Just Voted Yes

18 octobre 2025 à 20:48
It's the world's largest network of environmental groups, according to NBC News, with more than 1,400 members from roughly 160 countries. It meets once every four years. And in a vote Tuesday, the International Union for Conservation of Nature "approved further exploration of the use of genetic engineering tools to aid in the preservation of animal species and other living organisms." Researchers are already pursuing projects that involve changing some species' DNA. Scientists are genetically modifying mosquitoes to reduce transmission of diseases like malaria, for example, and synthesizing horseshoe crab blood, which is used in drug development. Controversial efforts to "de-extinct" archaic creatures — such as the so-called "dire wolf" that a biosciences company announced it had revived this spring — fall under the umbrella, as well. So do possibilities like modifying organisms to help them adapt to a warming world, which are on the table but further off in development.... The decision is applicable to work on a range of organisms, including animals, plants, yeasts and bacteria.... The notion of introducing genetic engineering into wild ecosystems would have been considered a nonstarter in most conservation circles a decade ago, according to Jessica Owley [a professor and environment law program director at the University of Miami]. But the intensifying effects of climate change and other stressors to biodiversity are bolstering arguments in favor of human intervention that could make endangered species resistant to those threats... The IUCN vote, she added, reflects a feeling of desperation among conservationists and governments, as existing regulations and conservation efforts fall short and species continue to disappear worldwide. "A separate measure, a proposed moratorium on releasing genetically modified organisms into the environment, failed by a single vote..."

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Windows 10 Refugees Flock To Linux as Zorin OS Claims 'Biggest Launch Ever'

18 octobre 2025 à 19:48
"Windows 10 is officially dead," writes Slashdot user darwinmac, "and the vultures are circling. Or maybe they are liberators, depending on your point of view." Neowin reports: Of all the projects trying to poach Windows users, Zorin Group might be the most aggressive, launching its biggest OS upgrade, Zorin OS 18, on the very day Windows 10 died. In a recent post on X, Zorin Group celebrated the launch of version 18, claiming that it hit 100,000 downloads in "a little over 2 days". The company called it its "biggest launch ever" and claimed that over 72% of those downloads came from Windows... Zorin OS 18 now includes an updated version of WINE 10 for better support of Windows software. On top of that, there's also an expanded database that helps when it detects a Windows installer. The system checks the file and suggests the best way to run over 170 popular apps, whether that means installing a native Linux version, using the web-based alternative, or firing it up through WINE. The article also notes LibreOffice's creators have been presenting Linux as a secure and cost-effective alternative since June, and "We have also seen initiatives like The "End of 10" Campaign by KDE, making the case for Linux and providing guides and info on how to switch."

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Perplexity's AI Browser 'Comet' is Now Free, with Big Marketing Deals to Challenge Chrome

18 octobre 2025 à 18:34
"Earlier available only to the paying subscribers, the Comet browser now offers its core features to all users at no cost," writes the Times of India. "This includes AI-powered search, contextual recommendations, and integrated tools designed to streamline research and content discovery." They say the move reflects the Chromium-based browser's goal to "compete with incumbents like Google Chrome and Microsoft Edge" — but also reflects Perplexity's "broader mission to democratize AI tools." More details from The Verge: The internet is better on Comet," the company says, promising to remain free forever as it styles the browser as a serious challenger to Google's Chrome... It's supposed to make surfing the web simpler and help you with tasks like shopping, booking trips, and general life admin. To borrow the company's words again: you "get more done." The AI-powered browser launched in July, though was only available for users who subscribed to the $200 per month Perplexity Max plan... No subscription at all will be needed to use Comet going forward, the company says. Perplexity has even struck deals with major sites including the Washington Post, and the Los Angeles Times to offer free access to their sites for one month through the Comet browser. And last week Perplexity also launched an agressive paid referral program, where active Perplexity Pro/Max subscribers get a payout of up to $15 for each friend who downloads and uses Comet through their affiliate link. (The payout size is based on the friend's country, with $15 being the payout amount for a U.S. user, with $10 payouts for users in 19 other countries include Canada, Australia, the U.K., several EU countries, Japan, and South Korea. In addition, Srinivas has been sharing positive tweets about Comet. (Like "This is unbelievable. Comet automatically hunts down Sora 2 invite codes across the web and signs you up!") But Perplexity is making even bigger claims for its browser: Perplexity AI CEO Aravind Srinivas said that the Comet AI browser can improve productivity so that companies won't need to hire more people. "Instead of hiring one more person on your team, you could just use Comet to supplement all the work that you're doing," Srinivas told CNBC's "Squawk Box"... The CEO said the artificial intelligence-powered web browser is a "true personal assistant" that allows users to complete more tasks in the same amount of time and said that the productivity gained could be worth $10,000 per year for a single person... Other tech companies have also been rolling out their own AI browser assistants. In January, OpenAI introduced its web agent, Operator, and Google released Gemini AI to its Chrome browser in September. Meanwhile, The Verge adds, The Browser Company (makers of the Arc browser) "is going all in on Dia, and Opera just launched its own AI browser, Neon." Of course, popularity brings problems, writes the Times of India: iPhone users are being warned by Perplexity CEO Aravind Srinivas against downloading a fake 'Comet' app on the App Store. He clarified that the official iOS version is not yet released and the current listing is unauthorized spam.. And earlier this month the browser security platform described a "CometJacking" attack where malicious prompts could be hidden in URLs (as a parameter). Comet is instructed "to look for data in memory and connected services (e.g., Gmail, Calendar), encode the results (e.g., base64), and POST them to an attacker-controlled endpoint... all while appearing to the user as a harmless 'ask the assistant' flow." (And with some trivial encoding it also seems to evade exfiltration checks.) The Hacker News reported that Perplexity has classified the findings as "no security impact."

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