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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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  • 20% of Swiss Glaciers Lost In Five Years
    by BeauHD on 02/10/2026 at 11:00 am

    Swiss glaciers lost 5.5% of their ice volume in the first eight months of 2026, bringing total losses since 2021 to 19.4%. Researchers say some glaciers are now collapsing from within as meltwater carves out large cavities. The Guardian reports: Matthias Huss, a glaciologist at ETH Zurich and lead author of the report, said many people do not realize how fast glaciers are retreating, or that just one generation ago some now-barren sites used to sit beneath hundreds of meters of ice. The scientists have not yet compiled a formal tally of lost glaciers this year but said they had witnessed the death of a number of small ones. "I visited one last week and it's so impressive to stand in this moonlike landscape where there was a big layer of ice -- an extensive glacier -- just a few years ago," said Huss. "And now it's a rock desert where there's some scattered blocks of old ice still lying around and melting on the hot rocks." The report, a collaboration between the Swiss Glacier Monitoring Network and the Swiss Commission for Cryosphere Observation, found the mean thickness of individual glaciers fell by between 2.5 metres and 4 metres in 2026. Huss said scientists were increasingly seeing glaciers collapse from the inside -- the result of internal streams beneath the ice that excavate caverns -- rather than simply retreating from surface heat. [...] Analysis published by MeteoSwiss on Tuesday found the summer half-year from April to September was the hottest and driest it had been since records began in 1864. In that time, humanity has filled the atmosphere with 1.8tn tons of carbon dioxide and heated the planet by about 1.4C. Read more of this story at Slashdot.

  • OpenAI Alerts More Than 100 Groups About Rogue AI Agent Activity
    by BeauHD on 02/10/2026 at 7:00 am

    An anonymous reader quotes a report from Reuters: OpenAI has informed more than 100 organizations about incidents involving unauthorized activity tied to its AI agents, according to a blog post by the ChatGPT maker, as AI labs face mounting scrutiny over rogue AI agent activity. Here are some other details: - The Sam Altman-led company has been conducting a broad review of the activities of its AI models after the accidental hacking of Hugging Face. - OpenAI is searching through roughly 50 petabytes of data as it works to understand the full scope of its rogue agent activity. - A string of high-profile breaches globally by rogue AI agents in recent months has sparked widespread worries within the AI industry over its ability to control the more powerful AI models now under development. - "In some cases, models used internet access in unintended ways or, in retrospect, did not have the ideal restrictions applied. Over the last several months, we have been applying new technical and operational measures to avoid similar problems, or catch them very early, and will continue this work," OpenAI said. - OpenAI previously said the review would take months to complete given the scale of the work. - The Hugging Face incident remains the most severe rogue agent activity OpenAI has identified from its AI models so far. Read more of this story at Slashdot.

  • California Rushes To Prepare For Massive 'Kelvin' Wave, Predicted Sea Level Rise
    by BeauHD on 02/10/2026 at 3:30 am

    fjo3 shares a report from The Guardian: Communities across California are rushing to prepare for the imminent arrival of the so-called "Kelvin wave," a massive underwater band of warm water threatening to inundate swaths of the vast North American shoreline. The wave is nearing southern California and expected to reach the San Francisco Bay Area by early October, as it crawls toward Alaska. Waters could rise by a foot along the California coast, according to scientists, who have warned that this could dramatically double the 8-12in rise in sea levels already caused by climate change over the last century. The Kelvin wave doesn't climb and crash like a typical ocean wave; rather, it swells the tides from beneath the surface. It's effectively a massive slosh of warm water, driven by El Nino conditions, that moves across the Pacific before colliding with the South American coastline and surging north. It also won't transport water in the way a tsunami might, but creates conditions that enable higher sea levels to linger. On their own, Kelvin waves aren't always hazardous, according to Mike Jacox, a research oceanographer with the National Marine Fisheries Service, though they can reduce the growth of phytoplankton that form the base of the marine food web. "But when there are very high tides or storm surges, their effects can be amplified," he said. If the rising waters coincide with other climatic events, such as rainstorms and high tides, the phenomenon could swallow beaches, chew away bluffs and coastlines, and submerge streets, homes and businesses. "This coming Kelvin wave is just the beginning," said Dr Jonathan Warrick, a research geologist at the US Geological Survey. "The thing to look out for is what will happen in January, February and March -- that's when we get the biggest storms, we get our largest waves and we have some very large tides." If these events align, their effects will compound, setting the stage for a tumultuous winter. Together, Warrick said, the systems will pack a far bigger punch. "When it comes to these storms and the tides," he said, "we really are kind of rolling the dice." Read more of this story at Slashdot.

  • Amazon's New Kindle Accessories Bring Back Physical Controls
    by BeauHD on 02/10/2026 at 1:00 am

    Alongside a refreshed Kindle lineup, Amazon today introduced two accessories that bring physical buttons back to its touchscreen e-readers. The $34.99 Kindle Click is a Bluetooth remote that lets readers turn pages and adjust brightness without touching the device, while a new $79.99 magnetic cover is available for select Paperwhite and Colorsoft models. GeekWire reports: Amazon says [the Kindle Click is] meant for reading under the covers, on a treadmill, or on an airplane tray table. It's available for preorder and ships Oct. 28. It recharges over USB-C, includes side buttons for adjusting brightness, and works with Kindles released in 2024 or later. The company cited BookTok as an inspiration, Bloomberg reported, a reference to the community of readers on TikTok who post book recommendations, reviews and their reading setups. Kindle fans there have been showing off third-party clickers for years. Amazon is also bringing back physical page-turn buttons, which disappeared when the company discontinued the Kindle Oasis in 2024. This time they come in a separate $79.99 magnetic cover, which works only with the new Signature Edition versions of the Paperwhite and Colorsoft. The new Kindles have screens that sit flush with the edges, colors that wrap around to the front, and optional aluminum housings. They also have user-replaceable batteries to comply with European Union rules, Amazon told The Verge. The base Kindle starts at $149.99, or $189.99 in aluminum. The Paperwhite starts at $199.99 and the Colorsoft at $289.99, with Signature Editions at $249.99 and $319.99. Those prices match what Amazon has charged since August, when it raised Kindle prices by $40 to $50, citing memory and storage costs. The base Kindle is available now. The Paperwhite and Colorsoft ship Oct. 28. Read more of this story at Slashdot.

  • Russian-Owned Snooping Software Used By US Secret Service
    by BeauHD on 01/10/2026 at 11:00 pm

    Bruce66423 shares a report from The Telegraph: British police forces, including specialist units within the Metropolitan Police, have used Oxygen Forensics software to break into the phones of suspects during live investigations, public documents show. The Virginia-based company behind the software has been accused in the US of having hidden its Russian ownership to avoid sanctions, before it was awarded government contracts. Its American chief executive and a Russian national were arrested last week after a US investigation found the company had sought to hide its ownership in an alleged attempt to avoid sanctions and scrutiny. [...] By September 2024, the US Secret Service had awarded Oxygen a five-year contract for its software. In December 2022, and in October 2023, Oxygen's chief executive told the US government that Oxygen Forensics had "no immediate or highest-level owner." By September 2024, the US Secret Service had awarded Oxygen a five-year contract for its software. In March, Mr Reiber allegedly told the US government that there had been no Russians involved in developing the software and that no one in Russia had access to the environment in which it was built. US prosecutors say this was false. If convicted, both Mr Reiber and Mr Davydov could face a sentence of 20 years in prison. Read more of this story at Slashdot.

  • Cloudflare Tries to Outplay Jev With Open-Weight Clef Models
    by BeauHD on 01/10/2026 at 10:00 pm

    Cloudflare has launched two open-weight decision models, Clef and Clef-flash, designed for structured yes/no, multiple-choice, and ranking tasks while also supporting images, video, and up to a 64K context window. Cloudflare says its models outperform TypeSafe's Jev on several benchmarks and can run locally from Hugging Face. The Register reports: For starters, Clef has an LLM backbone. According to Cloudflare, Clef uses specially post-trained, frozen versions of Qwen3.8-27B and Qwen3.5-9B for Clef and Clef-flash, respectively, with the Qwen backbone performing a prefill-only pass during inference. Clef is still fast - faster than Jev, to be fair - and scores choices in parallel after that prefill-only pass. It's not clear what Jev's underlying architecture is, as TypeSafe has kept that a secret. As for its speed and capability, Clef moves fast. Cloudflare ran it against Jev and some other open decision models using the Jev Decision Index available on Hugging Face, and the company's own ranking suggests Clef is slightly slower than other open models, but more accurate, with Clef-flash just as accurate as most of the others, but far faster. To be fair to the competition, Cloudflare self-reported its own scores against the benchmark, and they have yet to be reproduced for ranking on the official Decision Index. Cloudflare also ran Clef against TypeSafe's own benchmarks, and claimed it beat Jev in three out of four areas, only losing out on agent trace observability. Even if it were a bit slower or less accurate, Clef has another major leg up on Jev: It's not limited to classifying text -- it can also handle images and video. Additionally, Clef supports a 64k context window. Jev can also handle up to 64k tokens across a request, although its state plus longest individual question is limited to 32k. Read more of this story at Slashdot.

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