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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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  • FBI Arrests Cybersecurity Executive Over Data Breach After Contractor Fails to Update Oracle HR Platform
    by EditorDavid on 11/10/2026 at 7:34 am

    CNN reports: The FBI arrested a Canadian cybersecurity executive and ransomware expert as part of the investigation of a damaging hack that exposed the sensitive data of current and former FBI employees, according to court documents and people familiar the investigation. Edward Dubrovsky was arrested in the Philadelphia area in recent days... Dubrovsky is facing charges related to extortion and making threats. He has been transferred to Texas's Eastern District for a scheduled detention hearing, according to court records and a law enforcement official. FBI Director Kash Patel announced the arrest on Friday but did not disclose where it occurred or what role the man is suspected of playing in the hack. Patel also didn't name Dubrovsky, but CNN confirmed the defendant is believed to be tied to the FBI hack through multiple people familiar with the investigation... A LinkedIn profile under Dubrovsky's name lists years of experience in the Canadian cybersecurity industry and describes Dubrovsky as a 'globally recognized cybersecurity expert.' An Ed Dubrovsky is also the author of a book on handling ransomware negotiations with cybercriminals... There has also been an inquest at the FBI over how such a critical security lapse happened. The FBI determined that a contractor managing the bureau's jobs portal failed to update software "explicitly issued to secure the platform," [senior FBI cyber official, Brett Leatherman said last week]. The FBI has "removed the contractor," he said. The software in question is a human-resources platform made by Oracle, ShinyHunters has said. The hackers previously used a flaw in the software to attack targets in the education sector in May and June, according to Google's Threat Intelligence Group. But months later, the FBI contractor apparently still had not applied a security patch that was available for the software. "The inmate locator at the U.S. Bureau of Prisons website reports that a 54-year-old Edward Dubrovsky is currently being held at a federal facility in Philadelphia," reports security researcher Brian Krebs. Thanks to long-time Slashdot reader schwit1 for sharing the news. Read more of this story at Slashdot.

  • Ubuntu Confirms Thursday's Distributed Denial of Service Attack Against Its Web Infrastructure
    by EditorDavid on 11/10/2026 at 3:34 am

    On Thursday those trying to access the Ubuntu website, ISO downloads, and similar Ubuntu resources on Thursday found the site "inoperable," reports Phoronix, with the disruption confirmed as a distributed denial of service attack. "Our team is working diligently to resolve the incident," according to a Thursday post on Ubuntu Discourse — followed by a later announcement. "At this time our team continues to work on restoring affected services, most of them are now available. We appreciate your patience and understanding." Ubuntu's status page shows the Ubuntu.com outage lasting for 2 hours and 27 minutes on Friday — though with four-hour outages Wednesday (and other outages affecting other Ubuntu sites). Today "All components are Operational," the status page reports. Read more of this story at Slashdot.

  • UK Vegetables 20-50% Less Nutritious Than In the 1960s
    by EditorDavid on 11/10/2026 at 1:34 am

    The Telegraph reports that the nutritional value of fruit and vegetables has fallen by up to 50% since the Sixties, according a new study from researchers at startup studio Deep Science Ventures. The study "found that humans needed to consume twice the number of vegetables to get the same level of minerals such as potassium, magnesium or copper as would have been present in their food 60 years ago." The study found that many crops had lost 20% to 50% of several key nutrients... The decrease in nutrient and vitamin value is thought to be down to declining soil quality and crops being selectively bred for their ability to grow quickly, rather than there being any focus on their health benefits... It raises the prospect that the advice to eat five portions of fruit and vegetables a day, introduced in the UK in 2003, may need to be updated. The report added that people on weight-loss drugs could be most at risk from the lack of nutrients, as the treatments could cause them to consume less food... Nature-friendly farming techniques, such as planting crops that restore nutrients to the soil, could help improve the health benefits of vegetables, according to the researchers. In short, according to Will Summers, a senior associate at the firm, "we've been quietly hollowing out what's inside our food." Thanks to Slashdot reader Bruce66423 for sharing the article. Read more of this story at Slashdot.

  • AI Execs Game Out 'Political Revolt' after a Catastrophic AI Event
    by EditorDavid on 10/10/2026 at 11:59 pm

    Top executives at Anthropic, OpenAI and other AI companies "are privately gaming out scenarios for a public and political revolt after a catastrophic AI event," reports Axios, one that turns "an already wary public further against the technology and its leaders..." These AI company executives "anticipate a large-scale event, most likely a cyberattack, that shuts down access to financial services, internet connectivity, or even power and water..." the article points out. "Many top AI researchers and executives believe a major incident is inevitable. "OpenAI conducts preparedness exercises where teams discuss and work through a range of potential scenarios," a company spokesperson said. "These scenarios are not treated as inevitable, but are meant to help us prepare for a variety of circumstances." Anthropic declined to comment... Top AI planners assume Democrats, ascendant after the midterms, will move fast to shut down AI but will face significant challenges... The planning involves red-teaming for worst-case scenarios. It focuses mainly on racing to educate members of Congress. Company executives know regulation has no chance of passing right now, but still want to shape the legislation and policies U.S. leaders will turn to after a first catastrophic event.... Many AI industry insiders told Axios they believe a major event will occur in the next six to 12 months. "Even with Democrats in control of the House and Senate, the companies see fractured politics as the norm, including within the Democratic Party." Read more of this story at Slashdot.

  • Nicolas Cage Didn't Sign Amazon's AI Waiver For 'Spider-Noir'. Series Cancelled.
    by EditorDavid on 10/10/2026 at 10:59 pm

    "Nicolas Cage is speaking out against Amazon," reports Variety. Amazon developed the series Spider-Noir for Prime Video, but then allegedly asked Cage to sign an AI waiver: "Amazon is a very AI-friendly company, to the tune of $50 billion invested in OpenAI," Cage said Saturday during a panel on the Empire Stage at New York Comic Con. "I am not an AI-friendly actor, so it's like, connect those dots! I'm not a member of their club. I didn't sign the waiver to let him use AI on 'Spider-Noir.' I'm probably not going to be working with that studio again, but that's okay." Last month Amazon canceled Spider-Man Noir after just one season, Variety reports. And the cancellation was just days before the Emmy Awards, where it then earned 11 nominations (the most of any Prime Video program this year). ScreenRant reports: Spider-Noir was the actor's first TV role and was praised globally, with season 1 earning a near-perfect Rotten Tomatoes rating from critics of 92% and a 90% rating from audiences. Critics stated that "This sharply written homage to classic film noir — which includes a standout Nicolas Cage performance — is the novel superhero project fans need," and "Spider-Noir is one of the standout shows of the year...." The cancellation was certainly a huge shock as it had earned 11 Emmy nominations and reached 2.6 billion minutes viewed within its first six weeks on Prime Video. More from Variety: Cage went on to tell the Comic-Con audience that he hopes to work with the rising class of Gen-Z filmmakers, praising Backrooms director Kane Parsons, who parlayed his YouTube fame into a Hollywood career... "I got to get with these young directors who are Gen Z, and they're going at it their own way, whether it's through the YouTube culture or whatever it is," Cage said. "They're doing it from scratch and by hand. I want to get with that." Read more of this story at Slashdot.

  • Ubuntu 26.10 Will Offer a Rust-based GnuPG Replacement Option
    by EditorDavid on 10/10/2026 at 9:59 pm

    The blog It's FOSS reports: You already know that Canonical has been selectively replacing Ubuntu's C-based system components with Rust-written equivalents that don't compromise in terms of functionality, most of the time. Now it looks like the distro's OpenPGP implementation is next, with Sequoia PGP coming preinstalled in Ubuntu 26.10. Canonical wants it to eventually replace GnuPG [the dominant Linux implementation of PGP, written in C] as the default toolchain, though that switch has not happened yet... [The Ubuntu 26.10 release notes say Sequoia PGP's default status will be a future goal...] [Sequoia PGP] was started in 2017 by three former GnuPG developers who chose to build a new OpenPGP implementation in Rust rather than keep evolving GnuPG's existing codebase. Sequoia PGP is designed as a library that other software can use directly, rather than a standalone command-line tool. sq sits on top of that for encryption, decryption, signing, and key management, and sqv handles signature verification, filling in for gpg and gpgv in GnuPG. Sequoia also implements RFC 9580, the 2024 revision of the OpenPGP standard, whereas GnuPG has continued from the RFC 4880 branch, pursuing its own newer extensions and the LibrePGP specification rather than adopting RFC 9580 as its primary standard. From the It's FOSS Weekly newsletter, which also notes that the founder of the It's FOSS blog has also created a Linux-themed game called TUXDLE — a variation on Wordle where all the answers are Linux terms. Read more of this story at Slashdot.

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