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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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  • Privacy Backlash Explodes Against Meta's Smart Glasses
    by EditorDavid on 10/08/2026 at 1:59 am

    With nearly 70% of the market, "Meta wants its smart glasses to be a big hit," writes the Los Angeles Times. But after some users found ways to disable the light that warns people they're being filmed, "the high-tech specs have also turned into a liability, as some are calling the gadget 'pervert glasses...'" Some people are using the glasses — which look like a pair of regular spectacles — to record people without their knowledge and publish the videos on social media. The users secretly videotape and share what happens when they try to pick up women. Now, a growing number of people are worried they could be covertly recorded at the gym or even during sex. The backlash has prompted Meta to update its glasses to address privacy concerns, and some places have banned them, adding to the angst surrounding technology that's rapidly evolving... Concern about the glasses has exploded as more videos of interactions with people who don't know they're being recorded go viral on social media. On Instagram, some videos depict people getting approached in malls and grocery stores and on college campuses and sidewalks. While the videos are portrayed as jokes, the people filmed don't appear to know they're being recorded and sometimes seem uncomfortable, telling the strangers to leave them alone or stop harassing them. The outcry has spread beyond social media, with comedian Jimmy Kimmel calling the Meta devices "pervert glasses" on national television and singer Lorde telling concertgoers that smart glasses are "not sexy..." Instagram, which is owned by Meta, has been disabling accounts and taking down some of these pickup or prank videos for violating the platform's rules against harassment and bullying... Businesses are making their own calls about smart glasses. The 5 Point Cafe in Seattle, which banned Google Glass in the past, has banned Meta glasses from its diner and dive bar. "Leave your Meta-SpyBan Display at home, they are officially Ray-Ban-ned from all of our restaurants. We serve privacy, not side-eye surveillance," a 2025 Instagram post from the business states. An Android app that warns people if they're being recorded has roughly 110,000 downloads in the last six months, according to the article. The app's creator says it's a "social problem" that "we don't value privacy, that we feel entitled to use others for our entertainment or our private gain, and technology amplifies that." The American Civil Liberties Union and more than 70 organizations even sent a letter urging Meta to promise they'd leave facial recognition features out of their smart glasses, according to the article. But a Meta spokesperson said "no final decision has been made." Read more of this story at Slashdot.

  • AI Reviews Bring 'New Normal' to Linux Release Candidates: Lots of Bug Fixes
    by EditorDavid on 10/08/2026 at 12:59 am

    Linux Torvalds expects Linux 7.2 should be released next weekend "unless something really bad pops up," Torvalds said while announcing today's release candidate. But there's something interesting about Linux 7.2-rc7, writes Phoronix. "By the time the Linux kernel typically hits a -rc7 release things have usually settled quite well. But in today's world of AI/LLM coding/review agents, the kernel activity continues at an all-time high." Tons of bug fixes continued to trickle in across the kernel spectrum for all sorts of issues. The HWMON hardware monitoring subsystem saw several critical and high severity bug fixes, on the memory management side was a nasty race condition leading to a use-after-free in the kernel for the past eight years, Btrfs restored its fixup worker infrastructure to deal with silent data loss, lots of AI patches in the networking realm, and the kernel was patched for the Safe RET Interrupt Vulnerability. Linus Torvalds wrote in the 7.2-rc7 announcement: "Another week, another -rc. I can't say that I'm exactly thrilled about the size of this all, but it is what it is: the new normal with a lot of fixes, many of them due to review by various AI tools. And nothing looks particularly scary per se — it's just that there's a lot here. Most of it is fairly small, although we have a couple of larger diffs: s390/zcrypt fixes stand out in the diffstat, and so does btrfs bringing back the fixup worker infrastructure. And some netfilter ipset fixes. But aside from a few places like that, most of this is just lots of tiny fixes. It's pretty much spread all over — drivers (gpu, sound, networking, you name it), filesystems, core networking, arch code... Read more of this story at Slashdot.

  • Flock Accused of Reactivating Its Cameras Without Notifying a Town
    by EditorDavid on 09/08/2026 at 11:15 pm

    A Massachusetts newspaper reports that officials from the town of Littleton (population: 10,141) "claim that five of Littletonâ(TM)s Flock Safety cameras were switched back on by the company without informing the town..." Littleton had temporarily disabled the cameras earlier this year, according to the article, but upon discovering the cameras were still active, city officials say they directed the Town Counsel "to initiate cancellation of the contract with Flock Safety and directed the Town Administrator to coordinate the removal of the six cameras on public ways" with the Department of Public Works. Ironically, it's the same Massachusetts town that last year was breached by a Chinese-state-sponsored hacking group for over 300 days. Flock has also considered dashcams installed in hundreds of thousands Uber, Lyft, and delivery drivers' vehicles "to scan license plates those drivers travelled passed," reports 404 Media, "essentially turning Uber and Lyft drivers into roaming surveillance vehicles, according to a Flock presentation shared with 404 Media... 404 Media first revealed the intended partnership last August when multiple sources provided information on the plan." Read more of this story at Slashdot.

  • California City Declares State of Emergency After Cyberattack
    by EditorDavid on 09/08/2026 at 10:15 pm

    NBC Bay Area brings news from the small idyllic California town of Suisun City (population: 29,518). The city council "declared a state of emergency Saturday after a cyberattack that shut down computer systems including 911 public safety operations." "Malicious software infected and compromised" the East Bay community's information technology systems beginning about 5:45 a.m. Friday, the city said on social media. "The cybersecurity incident hit critical public safety operations, including 911 routing, police and fire dispatch, records and city services," the city said. "There is no imminent threat to the public," the city said. "All public safety services remain active." The city shut down its computer network "to contain the threat and preserve evidence for a federal investigation," it said... Suisun City dispatchers were taking calls for service through the Solano County dispatch center. Suisun City police officers and firefighters continued responding to calls for service, the city said, but online city services and internal operations were unavailable. On Facebook the city said it was "working alongside federal, state and regional agencies, including the FBI, Department of Homeland Security and California Office of Emergency Services to maintain emergency services, investigate the incident and restore systems." But Bay Area PBS station KQED notes "They're only the latest local government in the region to be hit by a cyberattack." Earlier this year, Foster City and Pittsburg experienced other cyberattacks that impacted services in their own jurisdictions. Foster City declared a state of emergency after a March ransomware incident that shut down many services for more than a week. Pittsburg lost almost $1 million to a February phishing attack, though over half of it was recovered. Read more of this story at Slashdot.

  • AI-Powered Browser Just Generates Every Website From Scratch
    by EditorDavid on 09/08/2026 at 9:15 pm

    XDA Developers reports: On July 22, a Google DeepMind engineer, Vidy Thatte, shared a snippet of a browser he built that "treats every URL as a prompt and generates a site from scratch" on his X account. Just a few days later, he shared a TestFlight link to let iPhone users try it for themselves. The browser he launched is called Gem, and it's a browser that doesn't really...browse. Instead of fetching a webpage from a server the way Chrome or Safari would, Gem hands whatever URL you type over to Google's Gemini 3.5 Flash Lite model and asks it to generate a webpage on the spot. If you enter a real address, it builds its own interpretation of that site rather than loading the actual thing. If you enter an address that doesn't exist, Gemini simply invents a website to fill the gap. In other words, you're not visiting the internet so much as browsing one the model dreams up as you go... Thatte's reasoning was that with a model as fast and cheap as Gemini 3.5 Flash Lite, there's almost no practical difference anymore between loading a website and generating a brand-new one on the fly... Given that this tool is powered by Gemini 3.5 Flash Lite and it's just a side project rather than a full-fledged tool, it doesn't come with Gemini access baked in. Gem requires you to bring your own Gemini API key to get it working. Every URL you enter fires off a request to the model, so Gem needs a key linked to your Google account to actually generate anything, with the usage billed to you. You can grab a key for free from Google AI Studio, paste it into Gem's settings, and you're ready to start typing URLs. While you can get started for free, I ran into the limits within two minutes of playing around. So, I did need to enable billing on my API key and decided to load $10 into it. While the blogger's own site seemed to only get the Gemini logo, tapping it revealed nearly two dozen remixing options. (Dark mode, Reader, Neubrutalist, Broadsheet, Blueprint, Comic book, Punk zine, Notebook, Chalkboard, Receipt, Teletext, System 7, Wes Anderson, Cyber neon, Clay, Frosted, Geocities, Matrix, Museum, Windows 95, Terminal, Vaporwave, and Hide images...) "The frontend morphed before my eyes. Every new edit took practically no time to load, and within a second or two, the same XDA articles would reappear wearing a completely different skin..." For another site, it kept the article headlines, but then rewrote all the text! And after entering an address they knew didn't exist — their own name — in two seconds the browser whipped up a slick portfolio "genuinely been better than some of what those tools produced with far more time and context to work with." But its link to a LinkedIn profile led to a lookalike page, because Gem "had simply generated its own version of it, complete with a made-up follower number and details I never wrote...." Read more of this story at Slashdot.

  • Ask Slashdot: What are the Costs of Switching Between Windows, MacOS, and Chrome?
    by EditorDavid on 09/08/2026 at 8:15 pm

    UI changes, lost productivity, untransferrable knowledge... Long-time Slashdot reader theodp notes the folly of switching to an unfamiliar new environment to be "more productive"... Champions of the switch often insist workers will be able to hit the ground running and get the same or even more work done from the get-go in the new unfamiliar environment because it's 'more productive', a conclusion often shaped by conventional wisdom or their 'gut' feeling. Decision makers may also mistake their own 'light-user experience' for universal experience and believe all platforms are fungible. And while it's one thing for a business to delay their delivery dates and increase costs of by introducing a switch in computing environments that's of unquantified and possibly dubious value, how about when a switch in computing environments is made that affects schoolchildren's ability to learn for a period of time? While a MacBook Neo is indeed cute, what might be the possible consequences of a decision to move 25,000 students off Windows and onto MacBook Neos...? Or even the impact on a single kid who moves from a MacBook school to a Windows or Chrome school (or whose home computing environment isn't aligned with their school). Or students whose teachers decide learning in their classrooms should now additionally require an understanding of the Minecraft computing platform/UI (used in over 40,000 school systems.). Learning Management Systems and now various AI Edtech tools used by schoolkids are also subject to change. "Even if students and schools eventually benefit from a new platform, one wonders how much learning is lost during the switch," theodp asks, "and what the financial and educational ROI and payback period look like." Are there bigger problems than we realize? Share your own thoughts and experiences in the comments. What are the costs of switching between Windows, MacOS, and Chrome? Read more of this story at Slashdot.

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