Wireless jamming attacks are on the rise. Rice University researchers have shown how self-curving radio beams can make a jammer appear to be somewhere it isn't, potentially undermining some anti-jamming defenses. Jamming relies on flooding a wireless receiver with noise that denies service. Some modern receivers identify and block jamming attempts using direction-of-arrival (DoA) estimation technology that pinpoints the jammer's direction and directs an array null that blocks signals emanating in the jammer’s direction. Were a jammer to transmit a self-curving beam, however, it could fool DoA-based anti-jamming defenses by appearing to come from somewhere else entirely, and that's exactly what the Rice researchers demonstrated. Rice electrical and computer engineering professor Edward Knightly and doctoral student Caroline Spindel presented a paper [PDF] last month in which they demonstrated a curving-beam jamming attack that caused "catastrophic bit-error-rate degradation" while also "fool[ing] the receiver's DoA estimator," preventing conventional DoA-based defenses from stopping the interference. Knightly and Spindel have done prior research developing wireless technology that could bend beams around objects to increase signal strength - particularly useful for short-range millimeter wave signals - and found that the same technology could be used to deploy jammers that are far harder to locate. Spindel gave the perfect analogy in a recent Rice press release about the research for understanding how curved beams confuse DoA estimators by considering a soccer ball kick to the head. “Imagine being hit on the right side of your head by a soccer ball - you would naturally look to the right,” Spindel said. “If the ball actually curved through the air, like a David Beckham free kick, then it was kicked from somewhere else entirely.” Were Sir David to keep moving and kicking curveballs at your head you’d probably spot him eventually, but it might take a minute, and a few more smacks, to stop him. A signal jammer at radio-wave distances will probably be far harder to spot, and it won’t even have to move: Knightly and Spindel were able to create the illusion that the jammer was mobile by modulating the beam parameters from a stationary position, making it even more difficult to locate the jamming signal and negating the point of blindly searching for the best spot to point an array null. Conventional recovery methods used to block jamming completely failed in laboratory tests, Spindel said. “This is the first demonstration of a jammer that cannot be reliably localized and the first time self-curving wireless beams have been used as an attack,” Knightly added. The pair sees their research not just as a way to point out a serious threat to wireless signals - GPS jamming of aircraft is on the rise, for example - but also something that can inform the direction of future wireless technologies as we move toward the 6G era. Until then, however, there’s the potential for even more devastating jamming attacks to come. ®

Foodguessr Guess the nation a food is from in a game styled after Geoguessr.

An anonymous reader quotes a report from Ars Technica: Microsoft's Build developer conference kicked off today, and as with almost everything the company has done in the last few years, Microsoft's opening keynote focused overwhelmingly on AI and other closely related technologies. [...] On the hardware front, we didn't get any updates for existing Surface devices (not counting yesterday's Surface Laptop Ultra announcement), but we did get something new: the Surface RTX Spark Dev Box is "a compact developer PC" built around Nvidia's new RTX Spark chip with up to 128GB of built-in memory. The Dev Box looks a little like a cartoon anvil or piano fell onto an Xbox Series X and flattened it. Its aluminum casing was designed "to double as a heatsink," and its preloaded version of Windows 11 Pro will include a "purposeful" set of developer-centric default settings and preinstalled tools.

This is a follow-up of sorts to the Windows Dev Kit 2023, also known as "Project Volterra." This Qualcomm Snapdragon 8cx Gen 3-powered PC was essentially the system board from a Surface Pro tablet stuffed into a plastic box, and it was introduced alongside Arm-native versions of several Microsoft developer tools. It helped to set the stage for the Arm-based flagship Surface devices that launched the next year, which benefitted from a better and faster x86-to-Arm code translation technology called Prism and a greater number of Arm-native third-party apps that didn't need to be translated in the first place. Microsoft didn't announce pricing or specific specs for the RTX Spark Dev Box, but you can probably expect it to cost quite a bit more than the $600 that Project Volterra did. Hopefully, Microsoft can keep the price at least somewhat lower than the $4,699 asking price for Nvidia's similarly specced DGX Spark box.

On the software side, several developer-centric changes are coming to Windows 11, particularly for users of the Windows Subsystem for Linux (WSL). Microsoft is introducing a Windows-native version of the coreutils command line tools, so that commands or scripts made for Linux work within Windows and the other way around; the ability to run WSL inside of containers, said to be arriving in "the coming months"; and something called Windows Developer Configurations that uses the WinGet tool to quickly set up "a distraction-free dev environment with VS Code, GitHub Copilot, WSL, PowerShell 7 and developer-optimized settings with one command on any Windows 11 device." Microsoft also introduced Microsoft Execution Containers (MXC), as "enterprise-grade sandboxed environments" that let AI agents like OpenClaw operate on Windows without getting unrestricted access to the whole system. In theory, MXC could let organizations enforce agent-specific limits, such as blocking access to personal accounts, separating work and personal data, or requiring permission before deleting files.

The MXC GitHub repo also notes support for "multiple containment backends," meaning the same sandboxing concept could apply beyond AI agents to other plugins, tools, and workloads.

Further reading: Microsoft Unveils Scout, an Autonomous AI Agent Built On OpenClaw

Read more of this story at Slashdot.

on the water photography has added a photo to the pool:

Door een tekort aan ‘vrijwillige ouderlijke bijdragen’ besloot een school in Strijen dat de overnachting op het jaarlijkse groep 8-kamp wordt geschrapt. De kinderen moeten maar thuis gaan slapen. Gevolg: woeste ouders, die hun eigen nachtbezigheidsrust zagen verdampen.

De ouders zijn een petitie gestart om de kampovernachting te redden, want zo’n overnachting buitenshuis is goed voor de ontwikkeling van de kinderen. Het komt blijkbaar niet bij ze op dat daar ook wel eens anders over wordt gedacht.

Kinderen voor kindweren bezong ooit de beleving van een zomerkamp:

Kon ik maar thuis zijn
En slapen in mijn eigen bed
Ik wil weer thuis zijn
Daar waar ik alles ken

Los van dat alles: Pater Moeskroen (folk, Keltische muziek) ) heeft heimwee op een vrolijk deuntje vrij poëtisch omschreven:

Soms zit het in een liedje
Soms zit het in een geur
(…)
En de heimwee
Is als een ondergrondse beek
Je ziet het niet
Maar je hoort het water stromen
Heimwee komt als een dief in de nacht
Onverwacht in onze dromen

In March 1976, Talking Heads played a show at The Kitchen in NYC; you can watch the entire show recorded from two angles in this video. The band had formed the year before and was more than a year away from recording and releasing their debut album.

It’s a great insight as to what these early Talking Heads shows were like, and with it also being in color, being good quality, and having two angles for most of the show, this is a must-watch.

The band played for about 90 minutes (2 sets plus an encore), working through tracks like Psycho Killer, Thank You For Sending Me An Angel, and Love → Building On Fire. (via open culture)

Tags: David Byrne · music · Talking Heads · video

BertvB posted a photo:

A detailed close-up of a Common Crow butterfly (Euploea core) resting gracefully on a vibrant green leaf, captured today in the butterfly garden at Wildlands in Emmen