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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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  • CoreWeave's Debt Stress Tests Private Credit's AI Financing Boom
    by BeauHD on 16/10/2026 at 6:00 pm

    An anonymous reader quotes a report from Reuters: Private credit's expanding role in financing AI infrastructure faced one of its clearest market tests this week as CoreWeave's bonds fell to distressed levels, raising questions about how lenders are pricing a boom built on chips, data centers and customer contracts. CoreWeave has about $50 billion of debt, according to LSEG data, making it one of the largest borrowers linking private credit to the AI buildout. The cost of insuring its debt against default climbed to about 1,200 basis points this week, while yields on some of its bonds rose to roughly 15% to 16%, signaling sharply increased investor concern over its credit risk. "There is still a price. Investors are still comfortable financing it, but they're demanding more compensation for it," said James Martin, senior US credit strategist at SMBC, referring to projects further from completion. Carlyle estimates that private credit could finance roughly $1 trillion of the AI infrastructure buildout but warns that aggressive lending could create concentration risks similar to those seen in software lending. "The clearest lesson is not to avoid AI compute exposure, but to set concentration limits before the buildout accelerates further, not after," Carlyle said. Read more of this story at Slashdot.

  • ChatGPT Can Peek At Your Chrome Tabs Now
    by BeauHD on 16/10/2026 at 5:00 pm

    OpenAI has updated its ChatGPT Chrome extension to let users access information from their open browser tabs. A demo video shows the new functionality in action. The Verge reports: It's also updated ChatGPT in the sidebar, with the full power of ChatGPT and your entire conversation history in Chat or Work to use without leaving the page you're viewing. It also enables ChatGPT Work to "control" your Chrome tabs for tasks like "sending messages, filling out forms, or downloading files," similar to Google's Gemini-powered "auto browse" feature, as well as organize or group open tabs. Read more of this story at Slashdot.

  • iPhone Duo Sells Out Immediately, Now Backordered Until Next Year
    by BeauHD on 16/10/2026 at 4:00 pm

    Apple's first foldable iPhone, the $1,999 iPhone Duo, sold out within minutes of preorders opening, with every configuration slipping to late January 2027. "All color and storage combinations show an estimated ship date of January 25," reports 9to5Mac. "Some users are even seeing January 29 for their estimated shipping date." From the report: This is a combination of strong demand and severely constrained supply for iPhone Duo. It's impossible to know the exact balance between the two, though. Going into the launch, there were multiple reports suggesting iPhone Duo would be in short supply as Apple was still ramping up production. A report from Nikkei Asia last month said Apple was making just a few hundred iPhone Duo units per day, significantly behind the ramp of a normal iPhone launch. Read more of this story at Slashdot.

  • KDE Plasma 6.8 Released, Marks 30 Years of the KDE Project
    by BeauHD on 16/10/2026 at 3:00 pm

    An anonymous reader quotes a report from Phoronix: The feature-packed and polished Plasma 6.8 KDE desktop is now available. Making this release all the more special is that it coincides with the 30th anniversary of the KDE project. KDE Plasma 6.8 ships many exciting improvements including vRAM usage optimizations, dwell clicker support on Wayland, Wayland commit-timing protocol support for KWin, improvements for the Union theme engine, better remote desktop support, multi-GPU handling improvements, the new kscreenctl tool, server-side drop shadow support, multi-monitor improvements, and a lot of other polishing throughout. Especially from the Wayland angle there has been a lot of polishing and fine tuning for Plasma 6.8. Accompanying the release is a new film, The KDE Documentary, which "tells the story of the pioneering open source community that gave computer users a free and open alternative to proprietary desktops like Windows." The documentary is available to stream for free on YouTube. Read more of this story at Slashdot.

  • Hackers Hijack D-Link, Ubiquiti Devices To Resell Your Stolen Bandwidth
    by BeauHD on 16/10/2026 at 11:00 am

    An anonymous reader quotes a report from BleepingComputer: A proxyjacking campaign has impacted devices in 34 countries, monetizing victims' internet connections through a commercial residential proxy network. The operator installed Pawns.app, a legitimate bandwidth-sharing application that lets users earn money by sharing their internet connections, on devices without the owners' consent. Pawns.app account holders are rewarded for allowing traffic from other users to flow through their network, provided it runs on trusted, non-blocking IP addresses. By installing the app on multiple systems, the attacker likely accumulated larger payouts. Threat intelligence company GreyNoise discovered the campaign while investigating suspicious activity at an unnamed organization, and identified at least 143 compromised devices worldwide. According to researchers, the attacker exploited known vulnerabilities in D-Link ShareCenter NAS (CVE-2024-3272 and CVE-2024-3273), Ubiquiti UniFi Video NVR (CVE-2021-44228), and SAP NetWeaver Visual Composer (CVE-2025-31324) to install the Pawns.app software. Hikvision and Dahua DVR/NVR devices were also targeted, though the specific vulnerabilities exploited were not identified. In some cases, the report says the attackers configured SSH key authentication to maintain backup access to the compromised systems. Read more of this story at Slashdot.

  • World's Timekeepers Vote to Eliminate the Leap Second
    by BeauHD on 16/10/2026 at 7:00 am

    Timekeepers have officially voted to eliminate the leap second, allowing Coordinated Universal Time to drift as much as one hour from Earth's rotation before a correction is needed. The change ends decades of occasionally adding or subtracting seconds and replaces it with a hypothetical "leap hour" that likely wouldn't be necessary for hundreds or even thousands of years. Smithsonian Magazine reports: "It's kind of a philosophical discussion, because if a leap hour happens, it won't be for a very, very long time," Christian Bizouard, director of the IERS Earth Orientation Center in France, tells the Guardian's Ian Sample. "What we are doing is pushing back the decision." The move caps off 30 years of debate, as the leap second has been highly controversial in the world of timekeeping. Leap seconds aren't nearly as smooth of a fix as leap years are, and they can cause computer and website issues. Reddit famously crashed when a leap second was added on June 30, 2012. It's "always been a problem," Judah Levine, a former researcher at the NIST's Time and Frequency Division, tells Scientific American's Emma Gometz. Instead of adding the entire second all at once, companies such as Google and Meta add the extra time in smaller segments in a tactic called "smearing," according to the Conversation. It's not a simple task, however, and companies that employ smearing have long lobbied to get rid of the leap second. What's more, with Earth's recent spin acceleration, timekeepers around the world were facing the possibility of the world's first negative leap second, in which a second would be subtracted from UTC. This sparked fears, akin to those surrounding Y2K, that our modern technologies wouldn't be able to handle such a change. "It's never happened before, and therefore the software for that has never been tested," Darryl Veitch, a researcher who leads the Timing Lab at the University of Technology Sydney, tells the Australian Broadcasting Corporation's Ellen Phiddian. But others argued that it wouldn't be much of a problem. The vote means that in the future, UTC will be allowed to diverge from astronomical time more than ever before. Read more of this story at Slashdot.

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