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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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  • Tesla Reveals SpaceX-Powered 'Flying' Roadster
    by BeauHD on 16/10/2026 at 3:03 am

    Tesla has unveiled a dramatically redesigned Roadster concept capable of performing midair flips, controlled landings, and a claimed 0-60 mph sprint in just 0.81 seconds. CarScoops reports: Tonight, Tesla debuted the new Roadster by driving it up a vertical ramp that then went horizontal. Then, it repeated the feat but drove off of the ramp and used thrusters to flip itself over and make a controlled landing on the ground. After that, it did a barrel roll over the rest of the Tesla lineup and again landed without issue on the ground. Then, it did 0-60 mph in 0.81 seconds according to Tesla. All of that sounds amazing, and indeed, watching it happen was pretty spectacular, but boy do we have a lot to unpack. It's been nearly a decade since Tesla first showed us the Roadster. The company unveiled what it's simply calling the Roadster. Not Roadster 2.0, not CyberRoadster, just Roadster, as if it's a direct successor to the original Tesla. In terms of design, it's quite a bit different from the car we saw in 2017. Rather than be a somewhat curvaceous sports car, it's considerably more angular. If a Cybertruck and a Lamborghini Reventon had a runt of a baby, this would be that car. Still, at this stage, we're still just touching on what we saw and what it looks like. Let's get into the details. Developed in collaboration with SpaceX, the Roadster uses 10 cold-gas thrusters powered by two 600-liter compressed-air tanks to accelerate and maneuver in mid-air. Underbody suction fans reportedly generate up to 2Gs of downforce even while stationary, while an active rear spoiler adjusts aerodynamics in real time. Other features include steer-by-wire, brake-by-wire, and throttle-by-wire technology. Tesla plans three variants: Performance, which requires a $50,000 deposit; Thrust, a $250,000 model capable of sub-one-second acceleration; and Rocket, an invite-only, single-seat version capable of flying. Production isn't expected until 2028, and Tesla has yet to disclose key specifications, including range, horsepower, battery capacity, and motor configuration. A recording of the event can be viewed on X. Read more of this story at Slashdot.

  • Police Seize Robot that Sexually Assaulted Teen Girl
    by BeauHD on 16/10/2026 at 1:00 am

    Slashdot reader alternative_right shares a story that has drawn international attention for being potentially the first documented instance of a robot being used directly in a sexual assault. According to the Associated Press, German police have opened a sexual harassment investigation after a robot allegedly touched a 16-year-old girl's buttocks and made thrusting motions while two young men reportedly filmed and streamed the incident. Investigators seized the robot and the suspects' phones and are trying to determine whether the movements were preprogrammed or controlled in real time. From the report: Cologne police spokesman Christoph Bermel said the two male teenagers have not been charged but are considered suspects, and investigators were examining whether the robot's movements were preprogrammed or controlled in real time. Police were unfamiliar with this type of incident, he said. "We have not been aware of this phenomenon so far," Bermel told The Associated Press, saying it was "new territory for us." [...] The robot, said to be 120 centimeters (about 3 ft 11 inches) tall, was dressed in a white tank top, black sweatpants and wearing a gold chain and sunglasses. It also had what appears to be a fake mustache. Videos circulated on the internet show two young men escorting the robot toward a group of women, bumping into one and hugging others, on a lively nighttime street. Read more of this story at Slashdot.

  • Ubuntu 26.10 Released
    by BeauHD on 15/10/2026 at 11:00 pm

    prisoninmate shares a report from 9to5Linux: Ubuntu 26.10 (Stonking Stingray) has been released today, and it is now available for download for those eager to update their Ubuntu systems to a newer release. Powered by the upcoming Linux 7.3 kernel series, Ubuntu 26.10 ships with the latest GNOME 51 desktop environment, TPM-backed full disk encryption (FDE) support on computers without a hardware root of trust, updated Settings to show whether a computer is certified for Ubuntu, and 100% Rust coreutils. There are several App Center enhancements in Ubuntu 26.10, such as a unified app-details view for Snap and Debian packages, a dedicated Drivers page where you can review the available graphics drivers, including NVIDIA driver branches, and support for installing codecs for one-time playback when a media file uses a codec that's not installed.' Other additions include an optional, locally processed AI-powered speech-to-text tool called Myna, system-wide controls for disabling Ubuntu Insights data collection, and better integration with Microsoft Entra ID. Also worth mentioning are the security and software updates that will be available for nine months, through July 2027. Read more of this story at Slashdot.

  • IMF Warns of the Real AI Threat: Debt
    by BeauHD on 15/10/2026 at 10:00 pm

    "Along with the dangers of continuing cyberattacks, the International Monetary Fund (IMF) reports that the threat of an AI market crash is putting the global markets at risk," writes Slashdot reader databasecowgirl, citing the IMF's latest semiannual Global Financial Stability Report. Here's a summary: Three salient risks could trigger a sharp tightening of financial conditions and market turmoil. Weaker or less durable investment and profitability in artificial intelligence could lead to a correction in AI-related asset prices, amplified by rising leverage and concentrated exposures. Resurgent inflation or fiscal concerns could drive a sharp rise in sovereign bond yields, with potentially broad repercussions across financial markets. Meanwhile, increasingly sophisticated cyber threats pose growing risks as finance becomes more digital and interconnected. Underlying financial vulnerabilities could amplify these risks and turn market stress into systemic events. Although the global banking system remains broadly resilient, pockets of weaker banks persist. Liquidity mismatches among insurers and pension funds have increased, while rising leverage and contingent liquidity risks in private credit could amplify stress. While hedge funds support market functioning in calm times, their use of leverage and exposure to crowded trades could exacerbate market stress too and create spillovers to prime brokers. Some emerging markets have seen policy buffers erode, and frontier economies have increasingly relied on less transparent forms of financing. Finally, although markets for tokenized assets remain small and could offer efficiency gains in several areas, they can create new channels for the buildup of leverage and mismatches in liquidity and maturity, in addition to elevating risks related to technology and infrastructure. These vulnerabilities underscore the need for policies that strengthen resilience, enhance transparency, contain excessive leverage, and improve preparedness for future shocks. The full report can be found here (PDF). Read more of this story at Slashdot.

  • Flock CEO Defends Surveillance Tech Amid National Backlash
    by BeauHD on 15/10/2026 at 9:00 pm

    An anonymous reader quotes a report from TechCrunch: Flock's founder and CEO Garrett Langley doesn't think the risks of introducing surveillance technology at scale outweigh the rewards. "If we want to live in a society where, if you commit a crime, you have a higher probability of being held accountable, we shouldn't pause progress," Langley said, speaking onstage during a panel at TechCrunch Disrupt 2026 in San Francisco on Wednesday. During the interview, the controversial founder of the surveillance maker of license plate cameras and other recording devices deflected hard questions about the criticism Flock now faces -- which has since led to canceled contracts and even layoffs. Instead, Langley tended to respond to questions with anecdotes from conversations with police chiefs and city leaders across the United States, and tales of the supposed numerous crimes Flock has solved, rather than offer tangible solutions to people's concerns. In doing so, Langley positioned Flock as an advance in technology that was somewhat inevitable. He stressed that if people wanted to live in a better society -- that is, one with reduced crime -- they would have to offer up their privacy in return. [...] "Technology, at its core, in its definition, is just doing things better. It's not doing things perfect," he said. "Driverless cars, I think, is a fair analogy. Driverless cars, I think, are definitively safer than human drivers. And when there's one accident, I don't think the answer is to shut down driverless cars. The answer is to say, 'Hey, let's talk about how we prevent more accidents in the future.'" [...] From Langley's answers, it's clear that the ethics around how Flock should be used is a decision he would much rather leave up to others. "We don't want to tell city leaders how to do their job," he noted. "We will provide recommendations, we'll provide defaults, but we're going to minimize the number of mandated features, functions, and policies," he said. Langley went on to argue that society too often judges technology "not on how it compares to the past, but how it compares to perfect." He acknowledged that "Flock is far from perfect" but maintained that its technology helps police departments compensate for staffing shortages and improve public safety. When pressed about potential abuse and privacy concerns, Langley offered few specifics, instead arguing that safeguards could be implemented without disrupting police operations. He insisted the benefits of what Flock offers outweigh the controversy. "There's millions and millions of people who have a better life today because [of] Flock," he said, adding that "it's worth it because one day they might be a victim." Read more of this story at Slashdot.

  • First-Ever Public Confirmation of 'Zero-Click' Spyware Delivered Via Targeted Ads
    by BeauHD on 15/10/2026 at 8:00 pm

    Citizen Lab says it has documented the first publicly confirmed case of zero-click mercenary spyware being delivered through targeted online ads, a technique it calls "AdFection." "There has been a lot of buzz that online ads can be used to identify and automatically hack targets with pinpoint precision, but now for the first time, we have concrete technical evidence showing this process in action," said Bill Marczak, a researcher at Citizen Lab. The Guardian reports: Citizen Lab, a digital investigations research unit at the University of Toronto, said it believed dozens of devices at the Qatari broadcaster Al Jazeera had been compromised by spyware delivered through ads run by Discover-Tech, which describes itself as a specialised digital advertising agency. According to Citizen Lab, Discover-Tech operates a software platform called Controlium that allows its clients to "mass-profile and deanonymize" internet users then covertly hack targets with third-party spyware. Unlike infections that rely on people interacting with links or files, the spyware requires no interaction from the victim to be installed, making it a new delivery technique, Citizen Lab says. The infections happen without a user's knowledge, and in a matter of seconds, according to Citizen Lab. "[The online advertising] ecosystem is being weaponized at a massive scale to profile millions of users, then silently infect targets with zero-click mercenary spyware," the report says. According to the report, Controlium is able to harvest a user's identity and IP address when the user is shown a seemingly benign custom-created ad -- for example, for a digital game or a telecoms service. If the user has been selected as a target for hacking, a mercenary spyware firm can then send a malicious code containing spyware to their device, the researchers say. They say that millions of users worldwide have been served ads by Discover-Tech since 2024, including in Yemen, Brazil, Mexico and Czechia. [...] The full extent of the targeting allegedly enabled by Discover-Tech is unknown. Citizen Lab's findings join mounting evidence that the opaque arrangements underpinning the world of online advertising can be leveraged for surveillance. Read more of this story at Slashdot.

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