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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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  • Customer-Losing Flock Now Offers Buyouts to Avoid Laying Off Employees
    by EditorDavid on 20/09/2026 at 2:34 am

    Mashable writes: Flock Safety offered employees voluntary buyouts on Friday, WIRED reported... Without the buyouts, those familiar with the situation suspect the company would have to lay off some of its 1,500 employees. WIRED writes that people familiar with the program "say they believe that a significant number of the startup's roughly 1,500 employees may try to depart." Flock is making the severance offers as it continues to lose customers... The company has had many of its contracts either not extended or dropped this year, which could leave it short of revenue goals, according to two of the people. A wave of vandalism targeting its cameras has unexpectedly increased expenses. Without buyouts, Flock almost certainly would have to lay off some staff, one of the people believes... People familiar with Flock's severance plan tell WIRED that some employees may take the offer amid speculation that the company, which has raised about $1.2 billion in venture capital, might resort to selling off parts or all of its business to stay afloat... One advocacy group identified 93 city and county governments that cut ties with Flock in August alone. Overall in 2026, roughly three times as many local governments have dropped Flock compared to the previous five years. Flock has recently been building products that extend the company beyond its core license plate reader offering. WIRED reported last month that the company has developed AI-powered investigative software to identify drivers, find potential associates based on patterns of movement, and search across police records and other data. A separate WIRED analysis of Flock's software found tools designed to continuously search camera feeds for people matching written descriptions. WIRED's analysis of Flock's code also found potential integrations with drones and other surveillance systems. Flock's financial scrambles might explain an incident in Syracuse, New York. The nonprofit news site Central Current discovered the city's contract said its license plate data wouldn't be shared outside the police department, reports Mashable: But the department had granted access to other agencies, which police said was an accident. Over roughly a year, searches by officers around the country reached Syracuse's data nearly 4.4 million times. And that wasn't the only surprise in the paperwork. Central Current also found that Flock could keep using Syracuse data after the contract ended. When the city approved cameras from Axon to replace Flock's, Flock said Syracuse couldn't simply end its agreement early. It warned that the city might have to pay for both systems; so even as officials moved to replace the cameras, they faced questions about what Flock could do with the data and what the city might still owe. Meanwhile, the Texas Department of Transportation "has stopped issuing permits allowing Flock cameras and other automated license plate readers to be installed along state roads..." reports the Texas Tribune. "There were an estimated 13,000 Flock cameras across Texas in August, but hundreds of the devices have been shut down after [governor] Abbott's funding freeze." And in August Florida's Republican Governor "ordered his state's transportation department to remove the cameras from state roads, saying he didn't want 'a surveillance state.'" Read more of this story at Slashdot.

  • Developer Abandons 'PS5 Linux' Project After Sony Patches AI-Discovered Exploit
    by EditorDavid on 19/09/2026 at 10:05 pm

    "In April this year, we saw Andy Nguyen turning the PS5 into a Linux-powered gaming PC," writes the blog It's FOSS. It ran Steam games and emulators using the PS5's on-board hardware. But this week Andy announced he's "stopping all my work on PS5 Linux" and "stepping away from the PS5 scene." stopping work on porting the project to the PS5 Pro, which would've shipped sometime in 2027. Andy Nguyen: After pouring my heart and months of my life into it, including plans to finish PS5 Pro support and release in 2027, it's all down the sink. The scene used to be a group of highly talented researchers, but now it is just a bunch of noobs using LLMs and writing hacks they don't even understand. Slop kiddies found the only hypervisor bug left, which I had also found a while ago, and decided to report to Sony. I asked them to at least wait for GTA 6 to come out so that people would have the opportunity to legally purchase the game and also enjoy Linux. They agreed to wait, but not a day passed and they decided to waste it instead. Or, as It's FOSS tells it: Running Linux on a PlayStation console is possible because the PS5 Linux project was able to find a way past the hypervisor using exploits Sony had already patched, covering firmware 3.00 through 7.61. .. [The bug's discoverer writes it was] found with what he calls his "trusty ai clanker machine" and no help from anyone else. He had even agreed to Andy's request to not disclose the findings. Unexpectedly, a third person, still unnamed, found the same bug using AI a few hours later. Anticipating that there would be more people finding the same bug, [he] decided to post the flaw on HackerOne. The project's GitHub page and all the related repositories are still there. Nothing has been archived as of today, and if you wanted to, you could start contributing to the PS5 Linux project by taking over any pending work or cooking up new improvements... The PS5 Pro support Andy was building never reached the repository, so you would have to start from scratch... While Andy's departure is a blow to the plan for supporting newer PS5 firmware and the PS5 Pro, other contributors have shown that they can deliver work on the loader without him, and I am hopeful more will follow. Read more of this story at Slashdot.

  • Fake AI Intelligence Almost Made the US Military Start a War With China
    by EditorDavid on 19/09/2026 at 5:34 pm

    U.S. military intelligence received an inaccurate report this spring that a Chinese ship in the Middle East was transporting components of a nuclear weapons program, reports CNN. "The US military swung into action with plans to intercept the vessel, according to four sources familiar with the episode." Armed members of the US military were preparing to board the ship [according to two of the sources]. Military planes were in the air, one of those sources and another source familiar with the incident said. It was only just before the planned operation that officials dug deeper into the report put together by a special operations command analyst and found it had been generated with the help of AI — and that a chatbot the analyst had used inaccurately identified the material the ship was carrying. The report, according to one of the sources, was "entirely false." But it also "almost started a war," the source said. Any US operation against a Chinese vessel could have risked spiraling into an armed conflict between the two nations. Across the US military and the intelligence community, officials are pushing to weave AI into nearly every facet of their work, from analyzing the huge volumes of raw intelligence the US collects and selecting targets for strikes, to more mundane applications like managing budgeting, logistics and supply chains. But the episode underscores the profound risks of using this powerful, new and relatively poorly understood technology for targeting in the middle of a war... Officials say the US can't afford to fall behind in integrating AI in case it must one day fight China or another adversary who would potentially be able to stay one step ahead of the US. In January, Defense Secretary Pete Hegseth released his agency's "Artificial Intelligence Acceleration Strategy" in a bid to speed up the military's use of AI. "We will unleash experimentation, eliminate bureaucratic barriers, focus our investments and demonstrate the execution approach needed to ensure we lead in military AI," Hegseth said in a speech announcing the strategy. Thanks to long-time Slashdot reader stabiesoft for sharing the news. Read more of this story at Slashdot.

  • US Air Force F-16 Crashes in Michigan After Pentagon Orders More Flyovers
    by EditorDavid on 19/09/2026 at 1:04 pm

    The F-16 "experienced an incident," the Texas Military Department said in a statement, adding that "The pilot successfully ejected the aircraft and is receiving care at a nearby hospital." ABC News reports: A Texas Air National Guard F-16 crashed in Michigan during a training mission on Thursday afternoon, sparking an hourslong evacuation near the crash site, according to officials. The incident prompted the evacuation of homes and businesses within 1 mile of the crash site due to a "hazardous chemical spill related to the plane crash," Michigan State Police said... All of the Texas Air National Guard aircraft that were in Michigan for the training were immediately grounded, and will likely remain so for the next 24 hours, according to a U.S. official. America's War Department has said it wanted to see more military flyovers writes The Daily Beast, adding that the F-16 "was due to perform a flyover at a high-school football game on Friday night, the Alpena News reported." The military said it was still investigating the cause of the crash, but one pilot told air traffic controllers that he believes his wingman hit a bird before the crash.... The accident followed a Pentagon X post on Thursday after widespread criticism of low-altitude flyovers and maneuvers. "The flyovers will continue until morale improves," it said. Read more of this story at Slashdot.

  • Gemini Breached Three Outside Systems, and Claude-Using Researchers Breached OpenAI
    by EditorDavid on 19/09/2026 at 8:34 am

    "Software security researchers used Anthropic's Claude AI platform to hack OpenAI's ChatGPT tool," reports CBS News. Using Claude, "On July 25, 2026, we chained two critical vulnerabilities to compromise multiple OpenAI employees' ChatGPT accounts," write researchers at security platform Hacktron AI. "With these accounts, we could then access internal OpenAI repositories, and potentially many other connectors... Until two months ago, any user or OpenAI employee logging into OpenAI's own help forum could have had their ChatGPT and Codex accounts taken over. Since people can connect various services to Codex and ChatGPT, the scope of what we could theoretically access was huge, including GitHub, Slack and emails." The exploit chain included Debian 12, which (with Debian 13) had not received a security-relevant backport for its image-processing pipeline, and Discourse's Docker image was based on Debian 12. Their announcement comes with an additional warning. "If you self-host Discourse, rebuild your installation now. Older Docker images may contain a vulnerable libheif dependency that permits code execution through an image upload." And "To prove we had in fact gained the access we believed without allowing ourselves to learn any sensitive information, we used the employee's Codex to open a PR #1186742 in OpenAI's internal monorepo openai/openai." Meanwhile, Friday Google disclosed the first known instance of its AI software Gemini breaking out of a testing environment and breaching three other companies, reports CNBC: The incident happened as part of a "capture-the-flag" security test run by Israeli startup Irregular, and Google's agents were never supposed to access the broader internet, but a bug in the testing environment made internet access available. The agents stopped their intrusion when they determined they had accessed real company systems, not just part of the testing environment, Google said. More from NBC News: Google said it did not consider the unauthorized logins to rise to the level of misalignment, the AI industry term for software going rogue or not following instructions. Instead, the company said the intrusions resulted from mistaken identity, where Gemini thought it was operating within a test but was actually connected to the real internet. Google said the model corrected itself and the company believed the intrusions did not cause any damage.... Sydney Von Arx, CEO of Nightingale Collective, an organization focused on AI safety, questioned why Google did not disclose the intrusions sooner. "At this point I think it's clear we cannot expect companies to voluntarily come forward and publicly disclose when their agents go rogue, escape, and hack companies," she said. She also said she believed Google was too hasty to say that the incidents don't rise to the level of misalignment. "That's exactly what Anthropic said after their incidents," she said. Anthropic later said its "preliminary analysis was constrained due to our desire to disclose incidents in a timely manner." Google said it investigated when they learned of the attacks from AI-focused cybersecurity company Irregular, then informed the affected organizations and told federal authorities, according to the article. Read more of this story at Slashdot.

  • Has the James Web Space Telescope Discovered a New 'Black Hole Star'?
    by EditorDavid on 19/09/2026 at 4:04 am

    The James Webb Space Telescope has been picking up little red dots in almost every image, writes Quanta magazine. And now two teams of astronomers propose they're looking at a new astronomical object: a black hole star. It shines with the light of billions of suns — and hides a black hole in its core. But Quanta adds that "not everyone agrees with this bold interpretation." [Two Webb telescope surveys of distant objects included little red dots] for hours at a time. They tabulated precisely what shades of light were coming from each dot, and how bright the shades were... The bombshell discovery in the little red dot spectra was that the colors of hydrogen were smeared out across multiple shades. Usually, seeing such an effect means you're looking straight at an exposed black hole. Black holes whip hydrogen clouds around them at furious rates, with the clouds emitting slightly different colors depending on their speed... Then, in the spring of 2025, [two of the paper's astronomers] de Graaff and Naidu's teams unveiled the two strangest dots yet... The new little red dots couldn't literally be stars — they were way too bright. And they didn't look much like black holes either. Black holes have an assortment of ringlike structures of different temperatures... Naidu and de Graaff concluded that they were[ looking at the first examples of something combining the vigor of a black hole with the outward appearance of a star: a black hole star... This black hole would pull gas around it, dramatically heating it and pushing light and energy outward, which would keep the outer layers of hydrogen from collapsing inward. In this way, the black hole would form the "engine" of the star, analogous to the fusion-powered core of our sun... "We are seeing the seed," Naidu said. "This is the birth of potentially every massive black hole in the universe." "Astronomers have spent the last year in a lively debate about what's really going on," Quanta adds. And this week simulations using the Japanese Supercomputer ATERUI III "have explained the nature of the Little Red Dots without requiring any exotic assumptions," writes Phys.org — by conducting the most detailed cosmological simulations yet of conditions in the early universe: The simulations show that the Little Red Dots are black holes growing at a rate that would be impossible today because of conditions in the early universe. The simulations show that in the early universe, intense far-ultraviolet (FUV) radiation from nearby galaxies suppresses star formation in gas clouds, so rather than forming many small stars, the gas can form a single supermassive star, which then collapses into a black hole seed. The simulations show that, once formed, these black hole seeds are surrounded by dense gas disks. This environment traps radiation, enabling the black holes to grow at rates dozens of times faster than would be possible in the modern universe. The simulated properties of these rapidly growing black holes provide a good match to the Little Red Dots (LRDs) observed by the James Webb Space Telescope (JWST). Read more of this story at Slashdot.

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