fidzu : computers

"There's one big bright spot in the fight against climate change that most people never think about," reports the Washington Post. "It could prevent nearly half a degree of global warming this century, a huge margin for a planet that has warmed almost 1.5 degrees Celsius and is struggling to keep that number below 2 degrees..." [M]ore than 170 countries - including the U.S. - have agreed to act on this one solution. That solution: phasing out hydrofluorocarbons (HFCs), a group of gases used in refrigerators, air conditioners and other cooling systems that heat the atmosphere more than almost any other pollutant on Earth. Pound for pound, HFCs are hundreds or even thousands of times better at trapping heat than carbon dioxide. Companies are replacing HFCs with new gases that trap much less heat. If you buy a new fridge or AC unit in the United States today, it'll probably use one of these new refrigerants - and you're unlikely to notice the difference, according to Francis Dietz, a spokesperson for the Air-Conditioning, Heating and Refrigeration Institute, a trade group representing U.S. HVAC manufacturers... But that invisible transition is one of the most important short-term tactics to keep Earth's climate from going catastrophically off-kilter this century. HFCs are powerful super-pollutants, but the most common ones break down in the atmosphere within about 15 years. That means stopping emissions from HFCs - and other short-lived super-pollutants such as methane - is like pulling an emergency brake on climate change. "It's really the fastest, easiest and, some would say, the only way to slow the rate of warming between now and 2050," said Kiff Gallagher, executive director of the Global Heat Reduction Initiative, a business that advises companies and cities on cutting greenhouse gas emissions. The only other solution that comes close to the speed and scale of slashing HFCs would be dimming the sun, a much more controversial and potentially dangerous option... [P]hasing out HFCs now "would buy us a little bit of time to develop other solutions that maybe take longer to implement," said Sarah Gleeson, a climate solutions research manager at Project Drawdown, a nonprofit that models how much different strategies would slow climate change. It could also keep the planet from crossing dangerous climate tipping points this century.

Read more of this story at Slashdot.

31 Jan 2026 6:34pm GMT

Slashdot reader alternative_right writes: Quantum computers need extreme cold to work, but the very systems that keep them cold also create noise that can destroy fragile quantum information. Scientists in Sweden have now flipped that problem on its head by building a tiny quantum refrigerator that actually uses noise to drive cooling instead of fighting it. By carefully steering heat at unimaginably small scales, the device can act as a refrigerator, heat engine, or energy amplifier inside quantum circuits.

Read more of this story at Slashdot.

31 Jan 2026 5:34pm GMT

Several security experts have "questioned the lack of technical detail" in that lawsuit alleging WhatsApp has no end-to-end encryption, reports the Washington Post: "It's pretty long on accusations and thin on any sort of evidence," Matthew Green, a cryptography professor at Johns Hopkins University, said over Signal. "WhatsApp has been very consistent about using end-to-end encryption. This lawsuit seems to be a nothingburger." Nicholas Weaver, a security researcher at the International Computer Science Institute, criticized the lawsuit in a post on Bluesky for lacking detail needed to back up its claims. "They don't even do a citation to the actual whistleblowers," he wrote, calling the suit "ludicrous." And Meta has done more than just deny the allegations: On Wednesday, WhatsApp sent a letter to [law firm] Quinn Emanuel threatening to seek sanctions against the firm's lawyers in court if they do not withdraw the suit, according to a copy reviewed by The Washington Post. "We're pursuing sanctions against Quinn Emanuel for filing a meritless lawsuit that was designed purely to grab headlines," Woog said by WhatsApp message. Woog also suggested the suit against WhatsApp was related to Quinn Emanuel's work on a separate case, between the social network giant and the spyware company NSO Group. The surveillance vendor is appealing a $167 million judgment entered against it in federal court last May, after a jury found that NSO's Pegasus tool exploited a weakness in the WhatsApp app to take over control of the phones of more than 1,000 users. An attorney from Quinn Emanuel joined NSO's legal team on that case on Jan. 22, according to legal filings, and different attorneys from that firm filed the case against WhatsApp on Jan. 23. "We believe a lawsuit like this is an attempt to launder false claims and divert attention from their dangerous spyware," Woog said. "It's very suspicious timing that this is happening as that appeal is happening," Maria Villegas Bravo, counsel at the Electronic Privacy Information Center, told the site Decrypt, "as NSO Group is trying to lobby to get delisted from sanctions in the U.S. government." EPIC's counsel also told the site that the complaint appears light on factual detail about WhatsApp's software: "I'm not seeing any factual allegations or any information about the actual software itself," Villegas Bravo said. "I have a lot of questions that I would want answered before I would want this lawsuit to proceed.... I don't think there's any merit in this lawsuit," Villegas Bravo said. Meta has forcefully rejected the allegations. In a statement shared with Decrypt, a company spokesperson called the claims "categorically false and absurd... WhatsApp has been end-to-end encrypted using the Signal protocol for a decade," the spokesperson said. "This lawsuit is a frivolous work of fiction, and we will pursue sanctions against plaintiffs' counsel."

Read more of this story at Slashdot.

31 Jan 2026 4:34pm GMT

With virtually no content and limited benefits, 8K TVs were doomed.

30 Jan 2026 11:09pm GMT

It's no secret that Windows 11 isn't exactly well-liked by even most of its users, and I'm fairly sure that perception has permeated into the general public as well. It seems Microsoft is finally getting the message, and they're clearly spooked: the company has told The Verge that they have heard the complaints, and intend to start fixing many of the issues people are having. The feedback we're receiving from our community of passionate customers and Windows Insiders has been clear. We need to improve Windows in ways that are meaningful for people. This year, you will see us focus on addressing pain points we hear consistently from customers: improving system performance, reliability, and the overall experience of Windows. ↫ Pavan Davuluri, head of Windows, to The Verge This entire statement is utterly meaningless. I have zero faith in words; only actions will do. Microsoft has made many promises over the years, and they have a history of simply not following through on them. Up until this year is over and there have been material improvements in Windows 11 that we can measure, see, and point to, nothing has changed between the day before the statement and the day after. Anyone taking this at face value and reporting it as such is an idiot. This means that at the end of this year, Windows 11 should be faster, more stable, experience far fewer breaking updates, have fewer - nay - zero ads, a far more consistent user interface, proper local account support, and more. If these things haven't become reality once the countdown runs out and on 31 December, Microsoft lied to our faces once more. Until then, don't use Windows.

30 Jan 2026 10:37pm GMT

Global Entry and Precheck revoked three days after incident, court filing says.

30 Jan 2026 10:36pm GMT

The website is delayed as senators seek answers from health department watchdog.

30 Jan 2026 10:25pm GMT

Operating systems written in Rust - especially for embedded use - are quite common these days, and today's example fits right into that trend. Ariel OS is an operating system for secure, memory-safe, low-power Internet of Things (IoT). It is based on Rust from the ground up and supports hardware based on 32-bit microcontroller architectures (Cortex-M, RISC-V, and Xtensa). For a quick overview of our motivations and what we plan next, check our roadmap. Ariel OS builds on top of existing projects from the Embedded Rust ecosystem, including Embassy, esp-hal, defmt, probe-rs, sequential-storage, and embedded-test. While those provide high-quality building blocks for a wide range of embedded applications, such projects do not provide the high level of integration that developers know from contemporary C-based operating systems for microcontrollers, such as RIOT or Zephyr for instance. ↫ Ariel OS GitHub page There's bound to be a microcontroller you can get your hands on that Ariel OS supports, and since it's licensed under either a MIT or Apache 2.0 license, you can get going right away.

30 Jan 2026 1:52pm GMT

On Friday, July 18th, 2025, the Arch Linux team was notified that three AUR packages had been uploaded that contained malware. A few maintainers including myself took care of deleting these packages, removing all traces of the malicious code, and protecting against future malicious uploads.

30 Jan 2026 12:00am GMT

As most of you will know, Mac OS X (or Rhapsody if you count the developer releases) wasn't Apple's first foray into the world of UNIX. The company sold its own UNIX variant, A/UX, from 1988 to 1995, which combined a System V-based UNIX with a System 7.0.1 desktop environment and application compatibility, before it acquired NeXT and started working on Rhapsody/Mac OS X. As a sidenote, I don't know if the application compatibility layer was related to the Macintosh Application Environment for UNIX, which I have running on my HP-UX machines. That's not the only time Apple dabbled with UNIX, though - Apple's unique Apple Network Server product from 1996 also came with UNIX, but time it wasn't one from Apple itself, but rather from its enemy-turned-friend IBM: AIX. The Network Server shipped with a slightly customised version of IBM's AIX operating system; regular AIX straight from IBM wouldn't work. The more things change, the more they stay the same I guess. Since the Apple Network Server was built around a modified Power Macintosh 9500 - there's much more to the hardware, but that's the short of it - so you would expect the Network Server to also be able to run regular Mac OS for PowerPC, right? Apple even sold server products running plain Mac OS at the time, so it'd make sense, but nothing about Apple in the '90s made any sense whatsoever, so no, use of plain Mac OS was locked out through the ROM. And let's not even get started about other PowerPC operating systems of the time, like, of all things, Windows NT - something Apple supposedly demonstrated at some point. But was that always the case? Well, we've got new ROMs straight from a former Apple employee, and after flashing them to a supported ROM chip, the Apple Network Sever can now run classic Mac OS. On top of that, and even more miraculous, the Windows NT-capable ROMs have also been discovered. I'll give you a spoiler now: it turns out the NT ROM isn't enough to install Windows NT by itself, even though it has some interesting attributes. Sadly this was not unexpected. But the pre-production ROM does work to boot Mac OS, albeit with apparent bugs and an injection of extra hardware. Let's get the 700 running again (call it a Refurb Weekend) and show the process. ↫ Cameron Kaiser While it's great news to see that Mac OS can now be run on the Network Server, I'm personally much more interested in the story behind the Windows NT ROMs. The idea that Apple would sell a computer running Windows NT out of the box is wild to think about now, but considering the desperate state the company was in at the time, all options must've been on the table. Sadly, as Kaiser discovered, the Windows NT ROMs in and of themselves are not enough to run Windows NT. However, they appear to be much farther along in the development process than even the Mac OS-capable ROMs, which is fascinating. When Jobs talked Gil Amelio into canning the ANS as well, the ROM initiative naturally went out the window with it. However, while the existing 2.0 Mac OS ROMs are only known on an unmarked development flash stick similar to mine, these final 2.26NT ROMs appear almost production-ready with fully printed labels, suggesting they had reached a very late stage of development. ↫ Cameron Kaiser Despite not being able to boot Windows NT for PowerPC as-is, most likely because there's no compatible ARC or HAL, Kaiser did discover a ton of interesting details, like how this ROM configures the Network Server to run in little endian mode, which is all Windows NT for PowerPC ever supported, making this the very first time a PowerPC machine did so. I'm hoping Kaiser manages to track down the necessary components to make Windows NT bootable on the ANS, as one of the most unique curiosities in Apple history. There's a ton more details in the article, as per usual Kaiser standards, and it's an absolute joy to read.

29 Jan 2026 11:50pm GMT

While starting this post I realized I have been maintaining personal infrastructure for over a decade! Most of the things I've self-hosted is been for personal uses. Email server, a blog, an IRC server, image hosting, RSS reader and so on. All of these things has all been a bit all over the place and never properly streamlined. Some has been in containers, some has just been flat files with a nginx service in front and some has been a random installed Debian package from somewhere I just forgot.

19 Jan 2026 12:00am GMT

In the recent blog post on the work funded by Sovereign Tech Fund (STF), we provided an overview of the "File Hierarchy for the Verification of OS Artifacts" (VOA) and the voa project as its reference implementation. VOA is a generic framework for verifying any kind of distribution artifacts (i.e. files) using arbitrary signature verification technologies. The voa CLI ⌨️ The voa project offers the voa(1) command line interface (CLI) which makes use of the voa(5) configuration file format for technology backends. It is recommended to read the respective man pages to get …

11 Jan 2026 12:00am GMT