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A Nice Little Cryptography Primer

By itss | 28/06/2021
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Pun Intended.

Category: Technology
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  • Scientists Turn Starlink Into a Giant Scanner For Earth's Upper Atmosphere
    by BeauHD on 14/08/2026 at 7:00 am

    alternative_right shares a report from ScienceDaily: Researchers have found a clever new way to map a part of Earth's upper atmosphere that is notoriously difficult to observe. Using orbital data from roughly 1,200 Starlink satellites, they reconstructed changes in atmospheric density about 500 kilometers above Earth. [...] The resulting density patterns also showed strong consistency with observations from the European Space Agency's SWARM satellites, which measure changes in atmospheric density along their orbital paths. The work expands on an earlier study by the same team. In that research, scientists estimated how thermospheric density changed over time and altitude using general orbital information called Two-Line Element, or TLE, data from Starlink satellites. The new analysis adds another dimension by examining how density varies horizontally across latitude and longitude, revealing more of the thermosphere's geographic structure. The findings could have practical benefits as the number of objects orbiting Earth continues to grow. More accurate information about atmospheric density can improve predictions of satellite motion, helping reduce the chance of collisions between satellites and between satellites and space debris. The technique could also eventually support near-real-time measurements of atmospheric density around satellites. Such monitoring could improve space weather forecasting and contribute to safer, more dependable satellite operations in the future. Read more of this story at Slashdot.

  • UK Scientists To Grow Miniature Human Organs For Drug Testing
    by BeauHD on 14/08/2026 at 3:30 am

    An anonymous reader quotes a report from The Guardian: Miniature human organs and other tissues are to be grown from NHS patients' cells in a drive to improve medicine testing and reduce the number of animals used in drug development. Scientists will use the clumps of tissue to learn how diseases vary between patients, helping them identify which treatments are best for different people based on the particular pathology underlying their condition. The move marks a shift away from the traditional use of animals as models for human disease, towards what researchers believe will be more accurate and reliable tests based directly on human tissues. Researchers have been growing tiny clumps of human organs, known as organoids, for more than a decade. Tests show that pieces smaller than a millimeter can mirror key features of full-scale organs and tissues, including how they falter with disease and respond to drugs. Armed with organoids grown from diseased human tissues, scientists can investigate whether new drug candidates reverse pathological changes in all or a subset of patients, and quickly identify ineffective drugs early in the process. Historically, more than 90% of drugs that clear animal testing go on to fail in human trials, raising questions about the value of the tests. US and European medicines regulators now encourage other approaches if available. "It's going to have a major impact on the numbers of animals used and the way we develop new drugs in the future," said Matthias Zilbauer, a clinical professor of paediatric gastroenterology at the Cambridge Stem Cell Institute. "We're not saying there won't be any animal use in the near or foreseeable future, because there are still certain issues that cannot be tested in these new models, but the reduction is very real." "A lot of human diseases either do not occur in animals or occur in a different way because they're not human," added Zilbauer. "We want tests and models that can tell us which treatments work, and in what patients, and a mouse cannot tell us that." Read more of this story at Slashdot.

  • Microsoft Retreats In China
    by BeauHD on 13/08/2026 at 11:00 pm

    Microsoft has been steadily scaling back its China presence, closing at least 15 branch offices and joint ventures over the past five years as Beijing favors domestic software. U.S. export controls also make it harder to grow its cloud and AI businesses, leaving the market with relatively little economic upside. Reuters reports: Microsoft took a major hit from the erosion of trust between Washington and Beijing, the five people said. China has since 2017 pushed the use of domestic software, which Beijing sees as more secure and whose quality is increasingly competitive with Windows and Office. U.S. restrictions, including export controls on advanced technology, have meanwhile hindered efforts to scale Microsoft's lucrative AI and cloud businesses in China. [...] Microsoft ultimately decided to remain because it had carved out a profitable business servicing Chinese companies like TikTok owner ByteDance, which need Western technology to manage overseas operations, according to three people familiar with the matter. The company also believed that it needed a presence to maintain access to China's world-class engineering talent, two of them said. Microsoft had also cultivated a relationship with the government that is among the deepest of any tech company, its former China head Alain Crozier told Reuters. "Because of the geopolitics ... some days it's a little bit harder, but we never had a crisis," he said. A Microsoft spokesperson did not address questions about the firm's deliberations on its China business but said it operates in a regulatory "environment that applies to every international supplier" and that it remains committed to the Chinese market. The state of Microsoft's China business reflects market competition, regulatory demands and technological trends, the company said. Read more of this story at Slashdot.

  • Google's Gemini 3.7 Flash Targets Coding and Agents With a 50% Price Cut
    by BeauHD on 13/08/2026 at 10:00 pm

    Google has released Gemini 3.7 Flash just three weeks after 3.6 Flash, focusing on better coding, agentic workflows, and enterprise automation while temporarily cutting API prices in half through the end of 2026. VentureBeat reports: For enterprise developers, the more consequential story may be the combination of those intelligence gains with lower inference costs: through the end of 2026, Gemini 3.7 Flash costs $0.75 per million input tokens and $3.75 per million output tokens. Starting Jan. 1, 2027, pricing rises to $1.50 per million input tokens and $7.50 per million output tokens. That means the current discount is temporary, but it gives teams deploying high-volume coding and business agents several months to evaluate whether Google's claimed reductions in retries and manual oversight translate into lower total operating costs. The launch also underscores Google's rapid iteration on its Flash line while its next flagship Pro model remains absent. [...] Google describes Gemini 3.7 Flash as its "most intelligent workhorse model yet for coding and agents." The company says the model is better at adapting when it encounters roadblocks, clarifying intent when necessary and following instructions with greater fidelity. [...] Google's benchmarks show a large generational improvement in several software engineering tests. [...] Google's own results do not show 3.7 Flash universally displacing higher-priced competitors. They instead suggest a model that has become substantially more competitive in coding and agent workloads while occupying a lower price tier. Read more of this story at Slashdot.

  • Microsoft Is Combining Its Copilot Apps Ahead of a 'Super App'
    by BeauHD on 13/08/2026 at 9:00 pm

    Microsoft is merging its consumer Copilot and Microsoft 365 Copilot apps ahead of a broader "super app" launch later this year. "Both personal and work accounts will be moved to the new unified app, which recycles the 'Microsoft Copilot' name but features an updated app icon," reports The Verge. "The single app also means there won't be two annoying Copilot icons in the system tray or taskbar anymore." From the report: The updates are intended to be a technical milestone in preparation of the "super app" Microsoft is planning to launch later this year, so this is laying the foundations of what will be changing for Copilot products. A worldwide rollout for the mobile and web apps will start in "mid-August," according to Microsoft, with a rollout to Windows and Mac apps set for "mid-September." Mobile app users will be prompted to download the new Copilot app, and the updates will start appearing for some Windows Insiders this week. What changes you'll see will depend on which Copilot apps you're already using. Existing Microsoft Copilot users will be moved to the updated version, along with your chats and content, while Microsoft 365 Copilot app users will see "minor navigation changes," the updated Copilot icon, and gain access to Copilot chat. If you already use both apps, Microsoft says your chats and content will be merged to a single updated Copilot app, but notes that chats, content, and data will remain separate between account types within the app. Microsoft says enterprise security, compliance, and government controls will remain unchanged and core Copilot features will remain free, though usage limits may vary. Podcasts, Deep Research, and Group Chat content will, however, be discontinued after August 18. The company also says Shopping and Copilot Health "may be temporarily unavailable" during the transition. Read more of this story at Slashdot.

  • Amazon Will Train On Twitch Streamers' Content By Default, Unless They Opt Out
    by BeauHD on 13/08/2026 at 8:00 pm

    Twitch will begin allowing Amazon to use streamers' content to train generative AI models by default, requiring creators to manually opt out if they don't want their videos and audio included. The decision has drawn backlash from creators, with Twitch's own product chief acknowledging that an opt-in system would likely attract almost no participants. "Why is it not opt-in? That's what everybody is spamming in chat. I get it. 'Let me opt in versus making me opt out,'" said Twitch Chief Product Officer Mike Minton. "Well, there's an honest answer... If this was opt-in, nobody would opt in. That's honestly the answer." TechCrunch reports: For Amazon, these stream recordings are incredibly valuable, offering thousands of hours of audio and video content to help train AI models. But Twitch users worry that since creators have to manually opt out, they might be surrendering their content to train Amazon's AI content models without even knowing it. This is especially concerning on a platform like Twitch, where creators are often recording livestreams of themselves and their voices for many hours per week. [...] Twitch knows that its community of streamers is largely opposed to the use of generative AI, since the most prevalent generative AI products are trained on books, images, videos, and other materials scraped from the internet without consent. Even Twitch's approach to breaking this news shows that the company is braced for backlash. Instead of telling the community that Amazon would begin training on Twitch users' content, Twitch framed this change as "[adding] a setting that lets you opt out of having your channel content used to train generative AI content models across Amazon." In some cases, this created confusion among streamers about whether their content had already been fed to Amazon without their knowledge. When one user asked if their videos had already been used for training, Minton responded, "I don't actually know the answer to that question because I don't know what Amazon [...] has done in terms of model training and what they've used and not used." Read more of this story at Slashdot.

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