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Russian Spies Jumped From One Network To Another Via Wi-Fi

Par : BeauHD
23 novembre 2024 à 00:45
"Steven Adair, of cybersecurity firm Veloxity, revealed at the Cyberwarcon security conference how Russian hackers were able to daisy-chain as many as three separate Wi-Fi networks in their efforts to attack victims," writes Longtime Slashdot reader smooth wombat. Wired reports: Adair says that Volexity first began investigating the breach of its DC customer's network in the first months of 2022, when the company saw signs of repeated intrusions into the customer's systems by hackers who had carefully covered their tracks. Volexity's analysts eventually traced the compromise to a hijacked user's account connecting to a Wi-Fi access point in a far end of the building, in a conference room with external-facing windows. Adair says he personally scoured the area looking for the source of that connection. "I went there to physically run down what it could be. We looked at smart TVs, looked for devices in closets. Is someone in the parking lot? Is it a printer?" he says. "We came up dry." Only after the next intrusion, when Volexity managed to get more complete logs of the hackers' traffic, did its analysts solve the mystery: The company found that the hijacked machine which the hackers were using to dig around in its customer's systems was leaking the name of the domain on which it was hosted -- in fact, the name of another organization just across the road. "At that point, it was 100 percent clear where it was coming from," Adair says. "It's not a car in the street. It's the building next door." With the cooperation of that neighbor, Volexity investigated that second organization's network and found that a certain laptop was the source of the street-jumping Wi-Fi intrusion. The hackers had penetrated that device, which was plugged into a dock connected to the local network via Ethernet, and then switched on its Wi-Fi, allowing it to act as a radio-based relay into the target network. Volexity found that, to break into that target's Wi-Fi, the hackers had used credentials they'd somehow obtained online but had apparently been unable to exploit elsewhere, likely due to two-factor authentication. Volexity eventually tracked the hackers on that second network to two possible points of intrusion. The hackers appeared to have compromised a VPN appliance owned by the other organization. But they had also broken into the organization's Wi-Fi from another network's devices in the same building, suggesting that the hackers may have daisy-chained as many as three networks via Wi-Fi to reach their final target. "Who knows how many devices or networks they compromised and were doing this on," says Adair. Volexity had presumed early on in its investigation that the hackers were Russian in origin due to their targeting of individual staffers at the customer organization focused on Ukraine. Then in April, fully two years after the original intrusion, Microsoft warned of a vulnerability in Windows' print spooler that had been used by Russia's APT28 hacker group -- Microsoft refers to the group as Forest Blizzard -- to gain administrative privileges on target machines. Remnants left behind on the very first computer Volexity had analyzed in the Wi-Fi-based breach of its customer exactly matched that technique. "It was an exact one-to-one match," Adair says.

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Wi-Fi 8 Trades Speed For a More Reliable Experience

Par : BeauHD
14 novembre 2024 à 01:40
Wi-Fi 8 (also known as IEEE 802.11bn Ultra High Reliability) is expected to arrive around 2028, prioritizing an enhanced user experience over speed by optimizing interactions between devices and access points. While it retains similar bandwidth specifications as the previous standard, Wi-Fi 8 aims to improve network efficiency, reducing interference and congestion for a more reliable and adaptive connection. PCWorld's Mark Hachman reports: As of Nov. 2024, MediaTek believes that Wi-Fi 8 will look virtually identical to Wi-Fi 7 in several key areas: The maximum physical layer (PHY) rate will be the same at 2,880Mbps x 8, or 23Gbits/s. It will also use the same four frequency bands (2, 4, 5, and 6GHz) and the same 4096 QAM modulation across a maximum channel bandwidth of 320MHz. (A Wi-Fi 8 router won't get 23Gbps of bandwidth, of course. According to MediaTek, the actual peak throughput in a "clean," or laboratory, environment is just 80 percent or so of the hypothetical peak throughput, and actual, real-world results can be far less.) Still, put simply, Wi-Fi 8 should deliver the same wireless bandwidth as Wi-Fi 7, using the same channels and the same modulation. Every Wi-Fi standard has also been backwards-compatible with its predecessors, too. What Wi-Fi 8 will do, though, is change how your client device, such as a PC or a phone, interacts with multiple access points. Think of this as an evolution of how your laptop talks to your home's networking equipment. Over time, Wi-Fi has evolved from communications between one laptop and a router, across a single channel. Channel hopping routed different clients to different bands. When Wi-Fi 6 was developed, a dedicated 6GHz channel was added, sometimes as a dedicated "backhaul" between your home's access points. Now, mesh networks are more common, giving your laptop a variety of access points, channels, and frequencies to select between. For a detailed breakdown of the upcoming advancements coming to Wi-Fi 8, including Coordinated Spatial Reuse, Coordinated Beamforming, and Dynamic Sub-Channel Operation, read the full article.

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Matter 1.4 Tries To Set the Smart Home Standard Back On Track

Par : BeauHD
9 novembre 2024 à 01:50
Longtime Slashdot reader AmiMoJo shares a report from The Verge: It's been two long years since the launch of Matter -- the one smart home standard designed to rule them all -- and there's been a fair amount of disappointment around a sometimes buggy rollout, slow adoption by companies like Apple, Amazon, and Google, and frustrating setup experiences. However, the launch of the Matter 1.4 specification this week shows some signs that the Connectivity Standards Alliance (CSA, the organization behind Matter) is using more sticks and fewer carrots to get the smart home industry coalition to cooperate. The new spec introduces 'enhanced multi-admin,' an improvement on multi-admin -- the much-touted interoperability feature that means your Matter smart light can work in multiple ecosystems simultaneously. It brings a solution for making Thread border routers from different companies play nicely together and introduces a potentially easier way to add Matter infrastructure to homes through Wi-Fi routers and access points. Matter 1.4 also brings some big updates to energy management support, including adding heat pumps, home batteries, and solar panels as Matter device types.

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West Virginia Town of Green Bank Has Become a Refuge For Electrosensitive People

Par : BeauHD
19 octobre 2024 à 03:30
An anonymous reader quotes a report from the Washington Post: Brandon Barrett arrived here two weeks ago, sick but hopeful, like dozens before him. Just a few years back, he could dead lift 660 pounds. After an injury while training to be a professional dirt-bike rider, he opened a motorcycle shop just north of Buffalo. When he wasn't working, he would cleanse his mind through rigorous meditation. In 2019, he began getting sick. And then sicker. Brain fog. Memory issues. Difficulty focusing. Depression. Anxiety. Fatigue. Brandon was pretty sure he knew why: the cell tower a quarter-mile behind his shop and all the electromagnetic radiation it produces, that cellphones produce, that WiFi routers produce, that Bluetooth produces, that the whole damn world produces. He thought about the invisible waves that zip through our airspace -- maybe they pollute our bodies, somehow? [...] Then Brandon read about Green Bank, an unincorporated speck on the West Virginia map, hidden in the Allegheny Mountains, about a four-hour drive southwest of D.C. There are no cell towers there, by design. He read that other sick people had moved here and gotten better, that the area's electromagnetic quietude is protected by the federal government. Perhaps it could protect Brandon. It's quiet here so that scientists can listen to corners of the universe, billions of light-years away. In the 1950s, the federal government snatched up farmland to build the Green Bank Observatory. It's now home to the Robert C. Byrd Green Bank Radio Telescope, the largest steerable telescope in the world at 7,600 metric tons and a height of 485 feet. Its 2.3-acre dish can study quasars and pulsars, map asteroids and planets, and search for evidence of extraterrestrial life. The observatory's machines are so sensitive that terrestrial radio waves would interfere with their astronomical exploration, like a shout (a bunch of WiFi signals) drowning out a whisper (signals from the clouds of hydrogen hanging out between galaxies). So in 1958, the Federal Communications Commission created the National Radio Quiet Zone, a 13,000-square-mile area encompassing wedges of both Virginia and West Virginia, where radio transmissions are restricted to varying degrees. At its center is a 10-mile zone around the observatory where WiFi, cellphones and cordless phones -- among many other types of wave-emitting equipment -- are outlawed. Wired internet is okay, as are televisions -- though you must have a cable or satellite provider. It's not a place out of 100 years ago. More like 30. If you want to make plans to meet someone, you make them in person. Some people move here to work at the observatory. Others come because they feel like they have to. These are the 'electrosensitives,' as they often refer to themselves. They are ill, and Green Bank is their Lourdes. The electrosensitives guess that they number at least 75 in Pocahontas County, which has a population of roughly 7,500. Literary Hub, the BBC, Slate, and the Washingtonian have non-paywalled articles about Green Bank and the "wi-fi refugees" that shelter there.

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AT&T, T-Mobile Prep First RedCap 5G IoT Devices

Par : BeauHD
14 octobre 2024 à 21:50
The first 5G Internet of Things (IoT) devices are launching soon. According to Fierce Wireless, T-Mobile plans to launch its first RedCap devices by the end of the year, while AT&T's devices are expected sometime in 2025. From the report: All of this should pave the way for higher performance 5G gadgets to make an impact in the world of IoT. RedCap, which stands for reduced capabilities, was introduced as part of the 3GPP's Release 17 5G standard, which was completed -- or frozen in 3GPP terms -- in mid-2022. The specification, which is also called NR-Light, is the first 5G-specific spec for IoT. RedCap promises to offer data transfer speeds of between 30 Mbps to 80 Mbps. The RedCap spec greatly reduces the bandwidth needed for 5G, allowing the signal to run in a 20 MHz channel rather than the 100 MHz channel required for full scale 5G communications.

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