TikTok owner ByteDance is reportedly still searching for non-sale options to stay in the US after the Supreme Court upheld a national security law requiring that TikTok's US operations either be shut down or sold to a non-foreign adversary.

Last weekend, TikTok briefly went dark in the US, only to come back online hours later after Donald Trump reassured ByteDance that the US law would not be enforced. Then, shortly after Trump took office, he signed an executive order delaying enforcement for 75 days while he consulted with advisers to "pursue a resolution that protects national security while saving a platform used by 170 million Americans."

Trump's executive order did not suggest that he intended to attempt to override the national security law's ban-or-sale requirements. But that hasn't stopped ByteDance, board member Bill Ford told World Economic Forum (WEF) attendees, from searching for a potential non-sale option that "could involve a change of control locally to ensure it complies with US legislation," Bloomberg reported.

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The modern Doom games have been a master class in reviving a beloved retro gaming series. Both 2016's Doom and 2020's Doom Eternal paid homage to both the look and feel of the original Doom titles without being slavishly devoted to older gameplay conventions that can feel dated decades later.

Yet by the end of Doom Eternal, you could feel the modernized gameplay system threatening to burst at the seams a bit. Managing your limited ammo, health, and armor resources in Eternal meant expertly juggling a bewildering array of chainsaws, flamethrowers, grenades, and melee-based staggers into powerful, pre-animated "glory kills." That was all on top of the frequent weapon-switching needed to take advantage of the weaknesses of the varied enemies surrounding you and the double-jump-and-dash movement system that required expert use of all three dimensions.

Something had to give. So for Doom: The Dark Ages, the team at id Software has committed to a more streamlined, back-to-basics system that limits complexity while maintaining the same overall difficulty level. That means a "fewer strings on the guitar" approach to controls that narrows almost every action down to just three context-sensitive buttons, as the developers discussed in a hands-off virtual preview session attended by Ars Technica.

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It's official: The FBI's warrantless searches of communications seized to protect US national security have at last been ruled unconstitutional and in violation of the Fourth Amendment.

In a major December ruling made public this week, US District Judge LaShann DeArcy Hall settled one of the biggest debates about feared government overreach that has prompted calls to reform Section 702 of the Foreign Intelligence Surveillance Act (FISA) for more than a decade.

Critics' primary concern was whether the FBI needed a warrant to search and query Americans' communications that are often incidentally, inadvertently, or mistakenly seized during investigations of suspected foreign terrorists.

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Federal Communications Commission Chairman Brendan Carr has revived three complaints against broadcast stations accused of bias against President Donald Trump.

Outgoing Chairwoman Jessica Rosenworcel last week directed the FCC to dismiss the complaints against CBS, ABC, and NBC stations, along with a fourth complaint about Fox, in what she called a stand for the First Amendment. Rosenworcel said the "threat to the First Amendment has taken on new forms, as the incoming President has called on the Federal Communications Commission to revoke licenses for broadcast television stations because he disagrees with their content and coverage."

But in three orders issued yesterday, the FCC Enforcement Bureau reversed the CBS, ABC, and NBC decisions. "We find that the previous order was issued prematurely based on an insufficient investigatory record for the station-specific conduct at issue," each new order said. "We therefore conclude that this complaint requires further consideration."

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Although fans of A Song of Ice and Fire might still be hankering for the long-delayed next book in the series, bestselling sci-fi/fantasy author George R.R. Martin has instead added a different item to his long list of publications: a peer-reviewed physics paper just published in the American Journal of Physics that he co-authored. The paper derives a formula to describe the dynamics of a fictional virus that is the centerpiece of the Wild Cards series of books, a shared universe edited by Martin and Melinda M. Snodgrass, with some 44 authors contributing.

Wild Cards grew out of the Superworld RPG, specifically a long-running campaign game-mastered by Martin in the 1980s, with several of the original sci-fi writers who contributed to the series participating. (A then-unknown Neil Gaiman once pitched Martin a Wild Cards story involving a main character who lived in a world of dreams. Martin rejected the pitch, and Gaiman's idea became The Sandman.) Initially, Martin planned to write a novel centered on his character Turtle, but he then decided it would be better as a shared universe anthology. Martin thought that superhero comics had far too many sources of the many different superpowers and wanted his universe to have one single source. Snodgrass suggested a virus.

The series is basically an alternate history of the US in the aftermath of World War II. An airborne alien virus, designed to rewrite DNA, had been released over New York City in 1946 and spread globally, infecting tens of thousands worldwide. It's called the Wild Card virus because it affects every individual differently. It kills 90 percent of those it infects and mutates the rest. Nine percent of the latter end up with unpleasant conditions—these people are called Jokers—while 1 percent develop superpowers and are known as Aces. Some Aces have "powers" that are so trivial and useless that they are known as "deuces."

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Although fans of A Song of Ice and Fire might still be hankering for the long-delayed next book in the series, bestselling sci-fi/fantasy author George R.R. Martin has instead added a different item to his long list of publications: a peer-reviewed physics paper just published in the American Journal of Physics that he co-authored. The paper derives a formula to describe the dynamics of a fictional virus that is the centerpiece of the Wild Cards series of books, a shared universe edited by Martin and Melinda M. Snodgrass, with some 44 authors contributing.

Wild Cards grew out of the Superworld RPG, specifically a long-running campaign game-mastered by Martin in the 1980s, with several of the original sci-fi writers who contributed to the series participating. (A then-unknown Neil Gaiman once pitched Martin a Wild Cards story involving a main character who lived in a world of dreams. Martin rejected the pitch, and Gaiman's idea became The Sandman.) Initially, Martin planned to write a novel centered on his character Turtle, but he then decided it would be better as a shared universe anthology. Martin thought that superhero comics had far too many sources of the many different superpowers and wanted his universe to have one single source. Snodgrass suggested a virus.

The series is basically an alternate history of the US in the aftermath of World War II. An airborne alien virus, designed to rewrite DNA, had been released over New York City in 1946 and spread globally, infecting tens of thousands worldwide. It's called the Wild Card virus because it affects every individual differently. It kills 90 percent of those it infects and mutates the rest. Nine percent of the latter end up with unpleasant conditions—these people are called Jokers—while one percent develop superpowers and are known as Aces. Some Aces have "powers" that are so trivial and useless that they are known as "deuces."

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The UK’s competition watchdog has launched an investigation into Apple's and Google’s mobile platforms, just days after the government forced out its chair as part of a push to cut the regulatory burden on business.

The Competition and Markets Authority said on Thursday it would examine whether the creators of the iPhone and Android smartphone operating systems should be subjected to extra scrutiny over how they run their mobile platforms, in its second investigation under the new digital markets regime.

The announcement comes just two days after the government ousted Marcus Bokkerink as chair of the CMA, amid concerns the regulator was not sufficiently focused on growth.

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The UK’s competition watchdog has launched an investigation into Apple and Google’s mobile platforms, just days after the government forced out its chair as part of a push to cut the regulatory burden on business.

The Competition and Markets Authority said on Thursday it would examine whether the creators of the iPhone and Android smartphone operating systems should be subjected to extra scrutiny over how they run their mobile platforms, in its second investigation under the new digital markets regime.

The announcement comes just two days after the government ousted Marcus Bokkerink as chair of the CMA, amid concerns the regulator was not sufficiently focused on growth.

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Now 11 seasons in, Formula E has come a long way from its sometimes chaotic early days and those mid-race pitstops to change cars. Car swaps went away a long time ago, but when the series gets back to racing next month in Jeddah, Saudi Arabia, the mid-race pit stop will be back. Except this time, the cars will be quickly recharged by powerful 600 kW fast chargers.

The new race feature, which Formula E is calling "pit boost," is a 30-second pitstop, during which time the car receives a 600 kW fast charge—more than twice as much power as a Tesla Supercharger—that adds 10 percent (3.85 kWh) to the battery's state of charge. It's mandatory for every car in the race, but a team is only allowed to charge one of its two cars at a time and only within a specified window of time during the race.

Some people are probably going to be unimpressed with the length of the stops—while they're shorter than you might see at a prototype stop at Le Mans or Daytona, you also won't see mechanics running around changing tires. We're also talking an order of magnitude longer than a current Formula 1 pitstop, which will no doubt be used as ammunition by Formula E's detractors, just as the lap-time comparisons are.

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The Cadillac Lyriq was the first of a new breed of General Motors' electric vehicles. Built around a common battery platform (which used to be called Ultium), the midsize SUV has been on sale for about three years now, and for model year 2026, there's a new version available, the first Cadillac EV to wear the V-series badge.

"V-Series captures the spirit of Cadillac, embodying our relentless pursuit of engineering excellence through our racing and production vehicles," said John Roth, vice president of Global Cadillac. "LYRIQ-V takes this commitment a step further in the EV era, pushing our performance pedigree of V-Series to new heights with a powerful, personalized and high-tech driving experience that fits perfectly into our customers' lives," Roth said.

As with other Cadillac V-series cars, you can expect a much higher power output than the base models. In this case, that's a hefty 615 hp (459 kW) and 650 lb-ft (880 Nm)—not quite double the output of the single-motor Lyriq we drove back in 2023. The Lyriq-V uses a pair of motors to achieve that output, powered by the same 102 kWh battery pack as in the normal Lyriq.

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Parents, students, teachers, and administrators throughout North America are smarting from what could be the biggest data breach of 2025: an intrusion into the network of a cloud-based service storing detailed data of millions of pupils and school personnel.

The hack, which came to light earlier this month, hit PowerSchool, a Folsom, California, firm that provides cloud-based software to some 16,000 K–12 schools worldwide. The schools serve 60 million students and employ an unknown number of teachers. Besides providing software for administration, grades, and other functions, PowerSchool stores personal data for students and teachers, with much of that data including Social Security numbers, medical information, and home addresses.

On January 7, PowerSchool revealed that it had experienced a network intrusion two weeks earlier that resulted in the “unauthorized exportation of personal information” customers stored in PowerSchool’s Student Information System (SIS) through PowerSource, a customer support portal. Information stolen included individuals’ names, contact information, dates of birth, medical alert information, Social Security Numbers, and unspecified “other related information.”

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Late last month, researchers revealed a finding that’s likely to shock some people and confirm the low expectations of others: Renewable energy facilities throughout Central Europe use unencrypted radio signals to receive commands to feed or ditch power into or from the grid that serves some 450 million people throughout the continent.

Fabian Bräunlein and Luca Melette stumbled on their discovery largely by accident while working on what they thought would be a much different sort of hacking project. After observing a radio receiver on the streetlight poles throughout Berlin, they got to wondering: Would it be possible for someone with a central transmitter to control them en masse, and if so, could they create a city-wide light installation along the lines of Project Blinkenlights?

Images showing Project Blinkenlights throughout the years. Credit: Positive Security

The first Project Blinkenlights iteration occurred in 2001 in Berlin, when the lights inside a large building were synchronized to turn on and off to give the appearance of a giant, low-resolution monochrome computer screen.

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NASA's acting administrator is moving swiftly to remove diversity, equity, inclusion, and accessibility—or DEIA—programs from the space agency.

In an email sent to agency employees on Wednesday afternoon, acting administrator Janet Petro wrote, "We are taking steps to close all agency DEIA offices and end all DEIA-related contracts in accordance with President Trump’s executive orders titled Ending Radical and Wasteful Government DEI Programs and Preferencing and Initial Rescissions of Harmful Executive Orders and Actions."

During his run for a second term as president, Trump campaigned on ending programs in the federal government that promote diversity, equity, and inclusion. He signed executive orders to that effect shortly after his inauguration on Monday.

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What could go wrong with eating an extremely high-fat diet of beef, cheese, and sticks of butter? Well, for one thing, your cholesterol levels could reach such stratospheric levels that lipids start oozing from your blood vessels, forming yellowish nodules on your skin.

That was the disturbing case of a man in Florida who showed up at a Tampa hospital with a three-week history of painless, yellow eruptions on the palms of his hands, soles of his feet, and elbows. His case was published today in JAMA Cardiology.

Painless yellowish nodules were observed on the patient’s palms (A) and elbows. B, Magnified view of the palmar lesions. These lesions are consistent with xanthelasma, likely resulting from severe hypercholesterolemia associated with a high-fat carnivore diet. Credit: JAMA Cardiologym 2024, Marmagkiolis et al.

The man, said to be in his 40s, told doctors that he had adopted a "carnivore diet" eight months prior. His diet included between 6 lbs and 9 lbs of cheese, sticks of butter, and daily hamburgers that had additional fat incorporated into them. Since taking on this brow-raising food plan, he claimed his weight dropped, his energy levels increased, and his "mental clarity" improved.

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Apple must face a potential class action alleging that Apple had a policy of paying men higher salaries than women for similar work.

On Tuesday, California Superior Court Judge Ethan P. Schulman filed an order that largely denies Apple's motions to strike the class allegations and suspend several class claims. This allows what one lawyer representing women suing, Joseph Sellers, said was "a very important case that impacts thousands of current and former female Apple employees."

Perhaps most significantly, Apple tried and failed to argue that pay disparities for individual female workers suing were "justified" and that their circumstances were not common to the 12,000 female employees who could be owed backpay if the class action is certified and Apple loses.

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Reddit is staying out of the current revolt against social media website X and, to a lesser degree, Meta, on its platform.

Since Tuesday, hundreds of subreddits have discussed and/or implemented bans against the site formerly called Twitter, as reported by 404 Media. Dozens of subreddits have already agreed to disallow the sharing of any links to X, with moderators (volunteer Reddit users) agreeing to enforce the bans.

The trend seemed to start among subreddits focused on sports-related topics, like the subreddits for the NFL, the Vancouver Canucks NHL team, and the Liverpool Football Club, as reported by Mashable. However, as of today, subreddits of various topics are discussing X bans. Reddit users in support of X bans like the one instituted by r/londonontario have pointed to various reasoning, including not being able to see tweet links without having an X account, Elon Musk appearing to make a Nazi salute at the presidential inauguration on Monday (as cited by r/Christianity’s and r/newjersey's bans, for example), and general dislike for Musk and/or how he runs X.

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On Tuesday, Anthropic CEO Dario Amodei predicted that AI models may surpass human capabilities "in almost everything" within two to three years, according to a Wall Street Journal interview at the World Economic Forum in Davos, Switzerland.

Speaking at Journal House in Davos, Amodei said, "I don't know exactly when it'll come, I don't know if it'll be 2027. I think it's plausible it could be longer than that. I don't think it will be a whole bunch longer than that when AI systems are better than humans at almost everything. Better than almost all humans at almost everything. And then eventually better than all humans at everything, even robotics."

Amodei co-founded Anthropic in 2021 with his sister, Daniela Amodei, and five other former OpenAI employees. Not long after, Anthropic emerged as a strong technological competitor to OpenAI's AI products (such as GPT-4 and ChatGPT). Most recently, its Claude 3.5 Sonnet model has remained highly regarded among some AI users and highly ranked among AI benchmarks.

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The open source Wine project—sometimes stylized WINE, for Wine Is Not an Emulator—has become an important tool for companies and individuals who want to make Windows apps and games run on operating systems like Linux or even macOS. The CrossOver software for Mac and Windows, Apple's Game Porting Toolkit, and the Proton project that powers Valve's SteamOS and the Steam Deck are all rooted in Wine, and the attention and resources put into the project in recent years have dramatically improved its compatibility and usefulness.

Yesterday, the Wine project announced the stable release of version 10.0, the next major version of the compatibility layer that is not an emulator. The headliner for this release is support for ARM64EC, the application binary interface (ABI) used for Arm apps in Windows 11, but the release notes say that the release contains "over 6,000 individual changes" produced over "a year of development effort."

ARM64EC allows developers to mix Arm and x86-compatible code—if you're making an Arm-native version of your app, you can still allow the use of more obscure x86-based plugins or add-ons without having to port everything over at once. Wine 10.0 also supports ARM64X, a different type of application binary file that allows ARM64EC code to be mixed with older, pre-Windows 11 ARM64 code.

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The Department of Homeland Security has terminated all members of advisory committees, including one that has been investigating a major Chinese hack of large US telecom firms.

"The Cyber Safety Review Board—a Department of Homeland Security investigatory body stood up under a Biden-era cybersecurity executive order to probe major cybersecurity incidents—has been cleared of non-government members as part of a DHS-wide push to cut costs under the Trump administration, according to three people familiar with the matter," NextGov/FCW reported yesterday.

A memo sent Monday by DHS Acting Secretary Benjamine Huffman said that in order to "eliminate[e] the misuse of resources and ensur[e] that DHS activities prioritize our national security, I am directing the termination of all current memberships on advisory committees within DHS, effective immediately. Future committee activities will be focused solely on advancing our critical mission to protect the homeland and support DHS's strategic priorities."

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Samsung announced the Galaxy S25, S25+, and S25 Ultra at its Unpacked event today. What is different from last year's models? With the phones themselves, not much, other than a new chipset and a wide camera. But pure AI optimism? Samsung managed to pack a whole lot more of that into its launch event and promotional materials.

The corners on the S25 Ultra are a bit more rounded, the edges are flatter, and the bezels seem to be slightly thinner. The S25 and S25+ models have the same screen size as the S24 models, at 6.2 and 6.7 inches, respectively, while the Ultra notches up slightly from 6.8 to 6.9 inches.

Samsung's S25 Ultra, in titanium builds colored silver blue, black, gray, and white silver. Credit: Samsung

The S25 Ultra, starting at $1,300, touts a Snapdragon 8 Elite processor, a new 50-megapixel ultra-wide lens, and what Samsung claims is improved detail in software-derived zoom images. It comes with the S Pen, a vestige of the departed Note line, but as The Verge notes, there is no Bluetooth included, so you can't pull off hand gestures with the pen off the screen or use it as a quirky remote camera trigger.

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