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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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  • OpenAI's Lead Is Contracting as AI Competition Intensifies
    by msmash on 04/02/2026 at 5:01 am

    OpenAI's rivals are cutting into ChatGPT's lead. From a report: The top chatbot's market share fell from 69.1% to 45.3% between January 2025 and January 2026 among daily U.S. users of its mobile app. Gemini, in the same time period, rose from 14.7% to 25.1% and Grok rose from 1.6% to 15.2%. The data, obtained by Big Technology from mobile insights firm Apptopia, indicates the chatbot race has tightened meaningfully over the past year with Google's surge showing up in the numbers. Overall, the chatbot market increased 152% since last January, according to Apptopia, with ChatGPT exhibiting healthy download growth. On desktop and mobile web, a similar pattern appears, according to analytics firm Similarweb. Visits to ChatGPT went from 3.8 billion to 5.7 billion between January 2025 and January 2026, a 50% increase, while visits to Gemini went from 267.7 million to 2 billion, a 647% increase. ChatGPT is still far and away the leader in visits, but it has company in the race now. Read more of this story at Slashdot.

  • Walmart Joins $1 Trillion Club
    by msmash on 04/02/2026 at 2:01 am

    Walmart's market cap surpassed $1 trillion on Tuesday, putting the largest U.S. retail chain in an exclusive club dominated by tech groups. Bloomberg adds: The Bentonville, Arkansas-based chain -- a longtime favorite of bargain-hunting consumers -- has flexed its massive scale and supplier network to keep prices low and grab market share across the income spectrum. While Walmart has maintained its appeal to households looking for value, its online offerings are drawing new, wealthier shoppers seeking convenience. Read more of this story at Slashdot.

  • Google Home Finally Adds Support For Buttons
    by msmash on 03/02/2026 at 11:31 pm

    An anonymous reader shares a report: Google Home users, your long nightmare is over. The platform has finally added support for buttons. The release notes for a February 2 update state that several new starter conditions for automations are now available, including "Switch or button pressed." Smart buttons are physical, programmable switches that you can press to trigger automations or control devices in your smart home, such as turning lights on or off, opening and closing shades, running a Good Night scene, or starting a robot vacuum. A great alternative to voice and app control when you want to control multiple devices, smart buttons are often wireless and generally have several ways to press them: single press, double press, and long press, meaning one button can do multiple things. Read more of this story at Slashdot.

  • Ultra-Processed Foods Should Be Treated More Like Cigarettes Than Food, Study Says
    by msmash on 03/02/2026 at 9:30 pm

    Ultra-processed foods (UPFs) have more in common with cigarettes than with fruit or vegetables, and require far tighter regulation, according to a new report. The Guardian: UPFs and cigarettes are engineered to encourage addiction and consumption, researchers from three US universities said, pointing to the parallels in widespread health harms that link both. UPFs, which are widely available worldwide, are food products that have been industrially manufactured, often using emulsifiers or artificial colouring and flavours. The category includes soft drinks and packaged snacks such as crisps and biscuits. There are similarities in the production processes of UPFs and cigarettes, and in manufacturers' efforts to optimise the "doses" of products and how quickly they act on reward pathways in the body, according to the paper from researchers at Harvard, the University of Michigan and Duke University. They draw on data from the fields of addiction science, nutrition and public health history to make their comparisons, published on 3 February in the healthcare journal the Milbank Quarterly. The authors suggest that marketing claims on the products, such as being "low fat" or "sugar free," are "health washing" that can stall regulation, akin to the advertising of cigarette filters in the 1950s as protective innovations that "in practice offered little meaningful benefit." Read more of this story at Slashdot.

  • NASA Delays Artemis II To March
    by msmash on 03/02/2026 at 8:00 pm

    ClickOnThis writes: NASA has delayed the Artemis II launch to March of this year, after a wet dress-rehearsal uncovered a hydrogen leak. From the NASA article: During tanking, engineers spent several hours troubleshooting a liquid hydrogen leak in an interface used to route the cryogenic propellant into the rocket's core stage, putting them behind in the countdown. Attempts to resolve the issue involved stopping the flow of liquid hydrogen into the core stage, allowing the interface to warm up for the seals to reseat, and adjusting the flow of the propellant. Teams successfully filled all tanks in both the core stage and interim cryogenic propulsion stage before a team of five was sent to the launch pad to finish Orion closeout operations. Engineers conducted a first run at terminal countdown operations during the test, counting down to approximately 5 minutes left in the countdown, before the ground launch sequencer automatically stopped the countdown due to a spike in the liquid hydrogen leak rate. Read more of this story at Slashdot.

  • Google Plots Big Expansion in India as US Restricts Visas
    by msmash on 03/02/2026 at 7:02 pm

    Alphabet is plotting to dramatically expand its presence in India [non-paywalled source], with the possibility of taking millions of square feet in new office space in Bangalore, India's tech hub. From a report: Google's parent company has leased one office tower and purchased options on two others in Alembic City, a development in the Whitefield tech corridor, totaling 2.4 million square feet, according to people familiar with the deal. The first tower is expected to open to employees in the coming months, while construction on the remaining two is set to conclude next year. Options in the real estate industry give would-be tenants the exclusive right to rent, or in some cases buy, a property at a predetermined price within a specific time frame. It's also possible Alphabet will not exercise the option to use the additional towers. If it does take all of the space, the complex could accommodate as many as 20,000 additional staff, which could more than double the company's footprint in India, said the people, asking not to be identified because the plans aren't public. Alphabet currently employs around 14,000 in the country, out of a global workforce of roughly 190,000. [...] US President Donald Trump's visa restrictions have made it harder to bring foreign talent to America, prompting some companies to recruit more staff overseas. India has become an increasingly important place for US companies to hire, particularly in the race to dominate artificial intelligence. Read more of this story at Slashdot.

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