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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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  • North Korean Infiltrator Caught Working In Amazon IT Department Thanks To Lag
    by BeauHD on 18/12/2025 at 11:20 pm

    An anonymous reader quotes a report from Tom's Hardware: A North Korean imposter was uncovered, working as a sysadmin at Amazon U.S., after their keystroke input lag raised suspicions with security specialists at the online retail giant. Normally, a U.S.-based remote worker's computer would send keystroke data within tens of milliseconds. This suspicious individual's keyboard lag was "more than 110 milliseconds," reports Bloomberg. Amazon is commendably proactive in its pursuit of impostors, according to the source report. The news site talked with Amazon's Chief Security Officer, Stephen Schmidt, about this fascinating new case of North Koreans trying to infiltrate U.S. organizations to raise hard currency for the Democratic People's Republic of Korea (DPRK), and sometimes indulge in espionage and/or sabotage. Schmidt says that Amazon has foiled more than 1,800 DPRK infiltration attempts since April 2024. Moreover, the rate of attempts continues apace, with Amazon reckoning it is seeing a 27% QoQ uplift in North Koreans trying to get into the Amazon corporation. However, Amazon's success can be almost entirely credited to the fact that it is actively looking for DPRK impostors, warns its Chief Security Officer. "If we hadn't been looking for the DPRK workers," Schmidt said, "we would not have found them." Read more of this story at Slashdot.

  • AI's Water and Electricity Use Soars In 2025
    by BeauHD on 18/12/2025 at 10:40 pm

    A new study estimates that AI systems in 2025 consumed as much electricity as New York City emits in carbon pollution and used hundreds of billions of liters of water, driven largely by power-hungry data centers and cooling needs. Researchers say the real impact is likely higher due to poor transparency from tech companies about AI-specific energy and water use. "There's no way to put an extremely accurate number on this, but it's going to be really big regardless... In the end, everyone is paying the price for this," says Alex de Vries-Gao, a PhD candidate at the VU Amsterdam Institute for Environmental Studies who published his paper today in the journal Patterns. The Verge reports: To crunch these numbers, de Vries-Gao built on earlier research that found that power demand for AI globally could reach 23GW this year -- surpassing the amount of electricity used for Bitcoin mining in 2024. While many tech companies divulge total numbers for their carbon emissions and direct water use in annual sustainability reports, they don't typically break those numbers down to show how many resources AI consumes. De Vries-Gao found a work-around by using analyst estimates, companies' earnings calls, and other publicly available information to gauge hardware production for AI and how much energy that hardware likely uses. Once he figured out how much electricity these AI systems would likely consume, he could use that to forecast the amount of planet-heating pollution that would likely create. That came out to between 32.6 and 79.7 million tons annually. For comparison, New York City emits around 50 million tons of carbon dioxide annually. Data centers can also be big water guzzlers, an issue that's similarly tied to their electricity use. Water is used in cooling systems for data centers to keep servers from overheating. Power plants also demand significant amounts of water needed to cool equipment and turn turbines using steam, which makes up a majority of a data center's water footprint. The push to build new data centers for generative AI has also fueled plans to build more power plants, which in turn use more water and (and create more greenhouse gas pollution if they burn fossil fuels). AI could use between 312.5 and 764.6 billion liters of water this year, according to de Vries-Gao. That reaches even higher than a previous study conducted in 2023 that estimates that water use could be as much as 600 billion liters in 2027. "I think that's the biggest surprise," says Shaolei Ren, one of the authors of that 2023 study and an associate professor of electrical and computer engineering at the University of California, Riverside. "[de Vries-Gao's] paper is really timely... especially as we are seeing increasingly polarized views about AI and water," Ren adds. Even with the higher projection for water use, Ren says de Vries-Gao's analysis is "really conservative" because it only captures the environmental effects of operating AI equipment -- excluding the additional effects that accumulate along the supply chain and at the end of a device's life. Read more of this story at Slashdot.

  • Judge Hints Vizio TV Buyers May Have Rights To Source Code Licensed Under GPL
    by BeauHD on 18/12/2025 at 10:00 pm

    A California judge signaled support for forcing Vizio to provide the full source code for its SmartCast TV software after finding a contractual obligation under the GPL. If upheld, the case could strengthen users' rights to modify GPL-licensed software embedded in consumer electronics. The Register reports: The legal complaint from the Software Freedom Conservancy (SFC) seeks access to the SmartCast source code so that Vizio customers can make changes and improvements to the platform, something that ought to be possible for code distributed under the GPL. On Thursday, California Superior Court Judge Sandy Leal issued a tentative ruling in advance of a hearing, indicating support for part of SFC's legal challenge. The tentative ruling is not a final decision, but it signals the judge's inclination to grant the SFC's motion for summary adjudication, at least in part. "The tentative ruling [PDF] grants SFC's motion on the issue that a direct contract was made between SFC and Vizio when SFC's systems administrator, Paul Visscher, requested the source code to a TV that SFC has purchased," the SFC said in a blog post. "This contract obligated Vizio to provide SFC the complete and corresponding source code." [...] Karen Sandler, executive director of the SFC, told The Register in an email that the hearing went well, though Vizio's legal counsel "stridently disagreed" with the legal analysis in the tentative ruling. "Judge Leal said she would take the matter 'under submission' which means she will think about it further," Sandler said. "After the Court went off the record, Leal's clerk specifically verified the Court reporter could provide an expedited transcript, so Leal will likely review the hearing transcript soon." Sandler expects Leal will examine the filings again before issuing her opinion, which is likely to be issued in the next few weeks. Read more of this story at Slashdot.

  • Formula 1 is Deploying New Jargon for 2026
    by msmash on 18/12/2025 at 9:21 pm

    Formula 1's 2026 technical regulations bring not only smaller and lighter cars but an entirely new vocabulary that fans and commentators will need to learn before the season opens in Australia in March. The drag reduction system that has been part of F1 racing since 2011 is gone, replaced by a suite of modes governing how the new active front and rear wings behave and how the hybrid powertrain delivers power. Straight Mode lowers both the front and rear wings to cut drag on designated straights, and unlike the outgoing DRS system any driver can activate it regardless of their proximity to other cars. The story adds: And there's corner mode, where the wings are in their raised position, generating downforce and making the cars corner faster. Those names are better than X-mode and Z-mode, which is what they were being called last year. [...] Instead of using DRS as an overtaking aid, the hybrid power units will now fulfill that role. Overtake mode, which can be used if a driver is within a second of a car ahead, gives them an extra 0.5 MJ of energy and up to 350 kW from the electric motor up to 337 km/h -- without the Overtake mode, the MGU-K tapers off above 290 km/h. There's also a second Boost mode, which drivers can use to attack or defend a position, that gives a short burst of maximum power. Read more of this story at Slashdot.

  • YouTube Shuts Down Channels Using AI To Create Fake Movie Trailers
    by BeauHD on 18/12/2025 at 8:40 pm

    An anonymous reader quotes a report from Deadline: YouTube has terminated two prominent channels that used artificial intelligence to create fake movie trailers, Deadline can reveal. The Google-owned video giant has switched off Screen Culture and KH Studio, which together boasted well over 2 million subscribers and more than a billion views. The channels have been replaced with the message: "This page isn't available. Sorry about that. Try searching for something else." Earlier this year, YouTube suspended ads on Screen Culture and KH Studio following a Deadline investigation into fake movie trailers plaguing the platform since the rise of generative AI. The channels later returned to monetization when they started adding "fan trailer," "parody" and "concept trailer" to their video titles. But those caveats disappeared In recent months, prompting concern in the fan-made trailer community. YouTube's position is that the channels' decision to revert to their previous behavior violated its spam and misleading-metadata policies. This resulted in their termination. "The monster was defeated," one YouTuber told Deadline following the enforcement action. Deadline's investigation revealed that Screen Culture spliced together official footage with AI images to create franchise trailers that duped many YouTube viewers. Screen Culture founder Nikhil P. Chaudhari said his team of a dozen editors exploited YouTube's algorithm by being early with fake trailers and constantly iterating with videos. [...] Our deep dive into fake trailers revealed that instead of protecting copyright on these videos, a handful of Hollywood studios, including Warner Bros Discovery and Sony, secretly asked YouTube to ensure that the ad revenue from the AI-heavy videos flowed in their direction. Read more of this story at Slashdot.

  • Mass Hacking of IP Cameras Leave Koreans Feeling Vulnerable in Homes, Businesses
    by msmash on 18/12/2025 at 8:05 pm

    Hackers breached approximately 120,000 IP cameras across South Korea and allegedly sold footage captured from private homes, gynecology offices, breastfeeding rooms and massage parlors to an overseas pornography website, prompting an interagency government task force to announce sweeping reforms on December 7. Police believe one suspect alone hacked 63,000 cameras and produced 545 videos that netted him 35 million won ($24,000) in cryptocurrency; a second suspect, operating independently, compromised 70,000 devices and earned 18 million won from 648 videos. The footage accounted for 62% of all content on the website, which maintains a dedicated "Korean" category. A government survey found that only 59% of installation companies consistently carried out mandatory security measures such as changing default passwords. Lawmakers are now pursuing legislation requiring security-certified IP cameras in sensitive facilities. Read more of this story at Slashdot.

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