fidzu : geek

SearchLeak exploit shows why the industry's approach to LLM security fails over and over.

16 Jun 2026 11:15am GMT

New simulations suggest Venus' extremely slow backward rotation may have been triggered by a high-angle collision with a fast-moving object roughly one-tenth its mass. The impact could have dramatically altered Venus' spin and melted nearly its entire mantle. Universe Today reports: Venus' bizarre and extraordinarily slow retrograde rotation on its axis has long puzzled planetary scientists. But in a new paper presented at the recent European Geosciences Union General Assembly in Vienna, the authors argue that their models indicate that a high angle moon-sized, high-velocity impactor likely triggered Venus's strange 248-day rotation. And it probably happened within the first 50 million years of Venus' formation. [...] The team found that an impactor that is about a tenth of Venus' mass hitting the planet at a high angle could drastically show the early young planet's rotation. Depending on the actual impact parameters, we can slow down a rapidly rotating early Venus to rotation rates that are that are compatible with long-term evolution towards a slow rotating planet, says [Cedric Gillmann, the paper's lead author and a planetary scientist at ETH Zurich]. Or even in some cases with large energetic impact that happen with a tangential impact that would even put planets early on in already a retrograde but faster rotation, he says. In the simulations, giant impacts expectedly produce surface magma oceans, the paper's authors note. Their relative depths vary depending on impact properties: from a shallow melt layer in the order of 100km thick to a fully molten mantle, they note. If the surface can radiate heat to space efficiently, the magma ocean cools down quickly, they write. If Gillmann and colleagues are correct, Venus' likely impactor also melted some 99 percent of Venus' mantle. That is, the interior structure that extends between its core and crust. You will get rid of that impact heat pretty efficiently, and after a few hundred million years, you end up seeing an evolution that is very difficult to distinguish from a case where you don't have an impact, says Gillmann. What role the impact may have played in Venus' lack of plate tectonics, however, remains open for debate. But it's known that Venus' lack of a large-scale carbon recycling mechanism likely led to its current runaway greenhouse.

Read more of this story at Slashdot.

16 Jun 2026 11:00am GMT

Commodore's Call Back 8020 is a phone "where the customer is not the product."

16 Jun 2026 9:00am GMT

A Chinese Zhuque-2E rocket's upper stage broke apart shortly after last week's June 9 launch, likely creating 100 to 150 pieces of debris in a busy region of low-Earth orbit crossed by the ISS and lower-altitude Starlink satellites. Most fragments should reenter within months because of atmospheric drag, but experts say the incident adds to a worsening trend as China leaves more large rocket bodies in orbit while expanding its launch rate. Ars Technica reports: The US Space Force confirmed the breakup event in a post on space-track.org, a website used by the military to distribute orbit data to the public. "The tracked pieces are being incorporated into routine conjunction assessment to support spaceflight safety," the Space Force wrote in an advisory. "There are currently no threats to human spaceflight. Analysis is ongoing." So far, the Space Force has not added any of the debris fragments to the official catalog of human-made space objects. [...] The bad news is that the Zhuque-2E's breakup is the latest chapter in China's growing contribution to the space junk problem. After decades of leaving spent rocket bodies in orbit, launch operators in most countries now reserve enough fuel to steer their upper stages back to Earth for controlled reentries. Rocket bodies attributed to Russia and the former Soviet Union account for the bulk of the launch-related debris in long-lived orbits, followed by China and the United States. But the Russian and American numbers are declining or holding steady, while the mass of Chinese rocket bodies in these long-lived orbits has grown by more than 150 percent in the past five years, according to a new analysis by Space Domain Awareness expert Jim Shell. The increase comes as China ramps up launches of its own megaconstellations designed to compete with SpaceX's Starlink. Rocket bodies are the most concerning sources of space debris because they are typically fairly large in size and mass, often with residual propellant and high-pressure gases that can trigger an explosion. There is no way to maneuver or dispose of them if left abandoned in orbit after releasing their payloads. McKnight characterized the recent breakup of the Zhuque-2E rocket as a "slight space safety issue," but the trend is not good. China's Long March 6A rocket has an especially bad track record, including two explosions that littered a higher-altitude low-Earth orbit with more than 1,000 debris fragments, where they will remain for decades or centuries. "Three of the top four breakup events in LEO are of Chinese origin, with two of these events being from Chinese (rocket body) explosions in the last four years," McKnight said.

Read more of this story at Slashdot.

16 Jun 2026 7:00am GMT

An anonymous reader quotes a report from TechCrunch: A group made up of dozens of cybersecurity experts, including several well-known veterans of the industry, published an open letter to the U.S. government asking it to lift the export control order on Anthropic's Fable and Mythos models. According to the open letter, "this action has taken the best models away from [cybersecurity] defenders" who now can't use the models to find vulnerabilities and make their software and products more secure. "To pull the best capabilities away from defenders without a good reason when our adversaries are rapidly advancing is dangerous," read the letter. On Friday, the U.S. government ordered Anthropic to limit the export of Fable and Mythos, citing national security concerns, without explaining the specific reasons behind the order, according to Anthropic. In response, the company suspended access to the models to all users worldwide. As of this writing, the letter is signed by 76 cybersecurity experts, including Alex Stamos, former Facebook chief of security; Casey Ellis, the founder bug bounty platform Bugcrowd; Jon Callas, famed cryptographer and former Apple security design and architecture manager; Paul Vixie, computer scientist ; Dino Dai Zovi, the former head of applied security engineering at Block; Katie Moussouris, the founder of Luta Security; and Rachel Tobac, the CEO of the security awareness training firm SocialProof Security. [...] Anthropic said that the White House export control order may have been based on a report that there was a method to bypass -- or jailbreak -- Fable to unlock its powerful Mythos-level capabilities. According to Katie Moussouris, one of the signatories of the open letter, the method was demonstrated by Amazon researchers in a paper that is not public but that she has reviewed. But Moussouris said in a blog post that the paper did not actually demonstrate a real jailbreak. Instead, she wrote, the researchers simply asked Fable to fix open source code with public and known vulnerabilities along with "deliberately planted vulnerabilities," after the model initially refused to "review the code for security issues." "The behavior described in the paper cannot meaningfully be fixed, and any attempt would only weaken the model for defense," Moussouris wrote. "Defenders need to be able to ask AI to fix the bugs in a file, explain why the fix matters, and write tests that confirm the patch works. That is not a guardrail bypass. It is the most valuable thing an AI model can do for defensive security: executing the find, fix, and test loop defenders run every day." Moussouris' critique was echoed in the open letter, which also said that the group of experts believe the model capabilities in the Amazon paper "can be replicated" on OpenAI's GPT-5.5, on Anthropic's own publicly available Claude Opus 4.8 and Sonnet, "and even Chinese models like Kimi 2.7." Moussouris told TechCrunch that "the bugs used to demonstrate the techniques in the paper can be found using the other models. The method in the paper is a guardrail bypass technique. Other models that lack the Fable guardrails often won't refuse the straightforward request to look for security bugs, so they don't need a bypass." The letter also asked for transparently and fairly enforced regulations created by "a democratic rule-making process" that are based on scientific research done by industry and academic experts, and "used only to the minimal extent necessary to ensure the safety of the American public."

Read more of this story at Slashdot.

16 Jun 2026 3:30am GMT

Isar Aerospace is not hurting for money, but it is sorely lacking in the currency of flight experience.

15 Jun 2026 11:40pm GMT

It's been a while since we've had a new operating system project written in Rust, so let's look at Zinnia. The kernel is written in (almost) 100% Rust and attempts to avoid unsafe code where possible. It implements a big range of POSIX APIs in system calls, but also exposes common extensions found in Linux and BSDs, like epoll and timerfd. This allows it to run a somewhat modern desktop using Wayland and X11 sessions. Most drivers are implemented as modules. These are Rust ELF dylibs which get loaded and linked during boot from an initrd, similar to Linux systems. Zinnia can boot from any UEFI based system thanks to the Limine bootloader. ↫ Zinnia OS website At least Weston and Xfce can run on Zinnia, even on real hardware, which is quite an achievement. The project was started in 2024 as a learning endeavour, but quickly grew out of control, as these projects are wont to do. The code's open source.

15 Jun 2026 7:28pm GMT

We're a little deep into June already, but it's only now that Haiku published its monthly progress report for May. There's a bunch of fixes for drag-and-drop behaviour in Tracker, AVX512 support can now be enabled thanks to changes to the kernel's FPU handling, some low-level changes were made for the Rust and Zig compilers, and further improvements were made to the boot process on the Raspberry Pi 5 (although a lot more work is needed on that front). There's still no sixth beta since a few more blockers remain, but don't let that stop you from installing Haiku - it's stable enough as it is, sixth beta or no.

15 Jun 2026 7:21pm GMT

Tribblix, the Illumos distribution focused on giving you a classic UNIX-style experience, has been updated with the release of Milestone 40. This version has some major component updates. Perl in now 5.42 instead of 5.34, and the default Python is now 3.13. The GCC suite is now version 14.2.0, go is version 1.26, Xfce has been updated to version 4.18, node is v22, with v24 added and v20 removed. ↫ Tribblix M40 release notes There's a more detailed changelog, as well as the downloads page to get started. If you're already running Tribblix, you can update in-place, of course.

15 Jun 2026 7:10pm GMT

Good morning from JetBrains Berlin office!

01 Jun 2026 12:00am GMT

Just trying to answer one simple question: What if the terminal was 3D?

11 May 2026 12:00am GMT

Break the pattern today or the loop will repeat tomorrow.

18 Apr 2026 12:00am GMT