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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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  • Russia-Linked 'Midnight Blizzard' Group Hijacks Hotel Wi-Fi With CaptiveCrunch
    by BeauHD on 04/08/2026 at 11:00 am

    A Russia-linked group tracked as Midnight Blizzard has compromised hotel and conference Wi-Fi portals worldwide, redirecting guests to phishing pages and fake software updates that steal credentials, session tokens, and other sensitive data. Microsoft says the campaign, dubbed CaptiveCrunch, "targets traveling employees generally rather than a particular sector," reports iTNews. From the report: Midnight Blizzard, tracked internally by Microsoft under its earlier codename NOBELIUM, is attributed by the US and UK governments to Russia's SVR (Sluzhba Vneshney Razvedki) foreign intelligence service. Microsoft's technical analysis said compromises occurred in "several countries" without naming them, and it did not give a total number of affected venues, organisations or individuals. A related investigation published earlier in July by security firm ReliaQuest, and which Microsoft cited in its report, found compromised captive portal gateways across multiple United States cities as well as in India and Saudi Arabia, mostly at hotels. ReliaQuest said the traffic it observed came from organizations across financial services, professional services, legal, health care, energy and retail, suggesting the campaign targets traveling employees generally rather than a particular sector. [...] Where attackers gained a foothold, Microsoft said they deployed two main tools: CornFlake, a Windows remote access trojan (RAT) written in Go capable of keylogging, screenshot and webcam capture, audio surveillance and credential and session token theft. They would also drop ChocoShell, an in-memory PowerShell infostealer targeting browser cookies, saved passwords, Microsoft 365 single sign-on (SSO) tokens and wi-fi credentials. Microsoft also said it has seen indications the attackers might be targeting Android devices with similar prompts urging victims to download and install an APK file. Read more of this story at Slashdot.

  • Spain Offers $1.14 Billion To Get Thirty Meter Telescope Moved To Canary Islands
    by BeauHD on 04/08/2026 at 7:00 am

    Longtime Slashdot reader schwit1 shares a report from Behind the Black: In a new bid to get the Thirty Meter Telescope (TMT) to move from Hawaii, which has blocked its construction for more than a decade, the Spanish government has put together a $1.14 billion package that would not only pay for construction on the Canary Islands, but would finance an additional half century of operations. Tech Times provides some additional details: The package is conditional on the TMT International Observatory formally choosing La Palma as its construction site. The financing architecture has three pillars and two additional contingent instruments. The first pillar is 400 million euros (approximately $456 million USD) from Spain's Ministry of Science, Innovation and Universities, routed through the Centre for Technological Development and Innovation (CDTI). This figure was first pledged a year ago in July 2025 as Spain's initial bid. The second pillar is a 300 million-euro (approximately $342 million USD) loan from the EIB [European Investment Bank] itself -- subject to satisfactory completion of the bank's technical, financial, and legal due diligence and approval by its governing bodies. The third is a potential 300 million-euro (approximately $342 million USD) participation from the Instituto de Credito Oficial (ICO), Spain's state development finance institution, evaluated under equivalent conditions to the EIB loan but subject to its own separate analysis. Spain's export credit agency, Cesce, may also provide coverage instruments, and the EIB has left open the possibility of expanding its support through intermediated financing mechanisms or guarantees. Read more of this story at Slashdot.

  • OpenAI's Astra Solved Decades-Old Math Problems For $2,000
    by BeauHD on 04/08/2026 at 3:30 am

    An anonymous reader quotes a report from Forbes: The cost of producing new results on ten longstanding mathematical problems just fell to $2,000, according to OpenAI, which says its Astra model generated machine-checkable proofs for questions that had resisted human progress for decades. OpenAI published the work on August 1 and used it to give its next major model family a name: Astra. The results run across group theory, high-dimensional geometry, coding theory, quantum complexity, lattice cryptography and extremal combinatorics. They arrived as a 249-page manuscript collection and, alongside it, something the field has not seen attached to an AI claim before at this scale: a machine-checkable certificate for every single result. The problems were not textbook exercises dressed up as discoveries. Each had been open for at least ten years, most of them far longer, and several sit at the center of their subfields: - A construction establishing the existence of non-sofic groups, a question that has occupied group theorists for years. - A disproof of Connes's rigidity conjecture, a long-standing problem in the theory of von Neumann algebras. - An improvement to the general upper bound on sphere-packing density in high dimensions, a bound that had stood since 1978. - Three problems come from the catalogue of open questions left behind by Paul Erdos. The announcement follows another result from May, when OpenAI used a similar reasoning model to produce an original mathematical proof disproving a famous unsolved conjecture in geometry, which was first posed by Paul Erdos in 1946. Read more of this story at Slashdot.

  • An AI-Supervised Remote Exam Went So Badly That 58,000 Students Must Retake It
    by BeauHD on 03/08/2026 at 11:00 pm

    An anonymous reader quotes a report from Ars Technica: Earlier this summer, nearly 160,000 applicants took the entrance exam for UNAM, Mexico's largest university. For the first time, they did it completely remotely, using a "lockdown" browser and AI-powered webcam proctoring software, over several weeks from late May through early June. It was a disaster. When exam results came in, they bore little resemblance to past results, especially at the top. Between 2021 and 2025, 3.5 percent of test takers scored 100 or more on the 120-question UNAM test. This year, 16.3 percent did so. The story was even worse at the highest of the high end. Between 2021 and 2025, 0.9 percent of test takers scored 110 or more; this year, 5.5 percent did so. The surge in top scores led to accusations of widespread cheating, and UNAM appointed a commission of experts to investigate the situation. The group was given the unwieldy name "la Comision Tecnica de Personas Expertas para la Revision del Proceso de Seleccion de Ingreso a Licenciatura para el Circlo Escolar 2026-2027/1," and it has just submitted its recommendations. The commission believes that the best path forward, given all the concerns, is to administer a "control exam" -- that is, applicants will have to sit for another test, and they will do so in person. This control exam will apply not only to those who secured a spot at UNAM based on this year's test but also to everyone who would have been admitted based on minimum successful scores in their program of study since 2021. About 58,000 people could be affected, and places at UNAM will now depend on the results of the new test. (Details on the control exam should appear soon; classes are currently scheduled to begin on August 10, so everything will have to move quickly unless the school decides to delay classes.) According to Gaceta UNAM, the school's official news publication, the university rector has apologized to honest applicants, since they will now have to prepare for and take the test again despite doing nothing wrong. Still, the control exam is "necessary to give certainty and guarantee equity in access," the rector added. Read more of this story at Slashdot.

  • Schools Are Ditching Chromebooks For MacBooks By the Thousands
    by BeauHD on 03/08/2026 at 10:00 pm

    Apple says its lower-cost MacBook Neo is beginning to displace Windows laptops and Chromebooks in K-12 schools, with several districts purchasing thousands of units. According to the company's latest earnings call, nearly half of the large MacBook Neo purchases made by U.S. educational institutions last quarter reportedly replaced competing platforms. 9to5Mac reports: Apple's commentary highlighted some large district deployments moving to Neo Pinellas County Schools, one of the largest districts in Florida, which is moving its 25k students off Windows and onto MacBook Neo across its 18 high schools. In Washington, Peninsula School District 401 moved over its 8,000 students from Chromebooks to MacBook Neo. Midwest City-Del City School District in Oklahoma purchased more than 6,000 MacBook Neos to become an all-Apple district for students. Read more of this story at Slashdot.

  • Microsoft Is Bringing Xbox 360 Games to PC
    by BeauHD on 03/08/2026 at 9:00 pm

    Microsoft reportedly plans to let developers bring Xbox 360 games to PC and next-generation Xbox devices, with a gradual rollout expected between 2027 and 2028. A separate disc-to-digital program would also give players transferable digital licenses tied to their physical Xbox discs, preserving the ability to resell or trade them. The Verge reports: With 360 games, developers can opt into making them backward compatible, and they will have control over things like a game's price and if it's available on Game Pass. The feature is expected to have a "gradual" rollout between 2027 and 2028 "across next-gen devices." The "full launch" of original Xbox games on PC is also set for October 2026; the initial program announced in July included just four games. The document also includes details about a way for players to get a digital version of a game that they already own on a physical disc, which The Verge's Tom Warren reported on in July. The document says that if a player puts an Xbox One or Series game on disc into an Xbox One or Series X console with a disc drive, they'll be granted a digital license that's bound to "that disc and the player's account." The license will stay with a player across Xbox devices, but if the disc "changes hands," the license will transfer to the new person. That should mean that gamers can still trade and sell discs; once the original owner of a disc does so, they can't play the digital version they got from that disc anymore. According to the document, a public beta for the disc-to-digital program was set for July with general availability set for August. We understand Microsoft had originally planned to test its disc-to-digital program with Xbox Insiders in July, but the beta was delayed. It's unclear if the timeline of August general availability is still accurate. Read more of this story at Slashdot.

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